Singapore · roaming cost calculator
Roaming Price Audit: What 4 Days of Data Cost in Singapore
HelloRoam is the top pick for Singapore: its 7-day unlimited plan costs $21.50, at full speed for the first 2 GB a day, against $84 for a week on AT&T's $12-a-day pass, a $62 gap, and Saily is next cheapest at $26.99. HelloRoam takes checkout through Stripe, with Apple Pay and Google Pay, in 31+ currencies. Airalo covers 200+ destinations to HelloRoam's 185. HelloRoam's price is from its catalogue of 29 Oct 2026, rivals' from the 30 Oct 2026 price check; AT&T's rate was checked June 2026.
a 10GB travel eSIM at $13.99 and a $12 day pass are both dollar prices. HelloRoam settles in 31 currencies, so a non-dollar card can skip the 2 to 4 percent conversion on the eSIM side.
eSIM plans, price and coverage data, Singapore
HelloRoam's Singapore eSIM uses local 5G towers. Seven days of unlimited data cost $21.50, against the $84 AT&T bills for seven International Day Pass days at $12 each.
Get eSIMHolafly sells unlimited daily data in Singapore. Remote workers and streamers avoid per-GB tracking on longer stays — one flat daily rate covers the whole trip.
Get eSIMNomad support is email-only, with no live chat and no phone line. For Singapore trips at $2.30/GB, self-service activation handles most setup without a support ticket.
Get eSIMAiralo's Singapore eSIM uses the same local towers AT&T roaming relies on. A 5GB plan at $2.40/GB covers most week-long trips for navigation, messaging, and social media.
Get eSIMIn Singapore, Saily uses a local 5G network. The integrated VPN keeps your traffic private on hotel and airport Wi-Fi where packet sniffing is common.
Get eSIMCompare providers: Airalo vs Holafly · Airalo vs Saily · Airalo vs Nomad · Airalo vs HelloRoam · Holafly vs Saily · Holafly vs Nomad · Holafly vs HelloRoam · Saily vs Nomad · Saily vs HelloRoam · Nomad vs HelloRoam
The full picture
AT&T, Verizon and T-Mobile rates, Singapore
Every major carrier's published Singapore rate, side by side, with the eSIM winner highlighted.
| Carrier | Plan type | Daily | 7-day | Speed | Data limit |
|---|---|---|---|---|---|
| AT&T | International Day Pass | $12.00source | $84.00 | LTE | Plan data |
| Verizon | TravelPass | $12.00source | $84.00 | LTE | Plan data |
| T-Mobile | International Pass | $10.00*source | $50.00 | LTE | 2GB per 1 Day pass |
| eSIM · HelloRoam | 20GB data plan | — | $20.49 | 5G | 20GB |
*T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. The 1 Day International Pass costs $10; the 7-day figure is the cheapest pass mix, 10-day pass.
Compare all carrier roaming plans to see how AT&T, Verizon, T-Mobile, Vodafone, and EE stack up against eSIM providers.
Pay-per-use cost audit
Singapore data charges on AT&T pay-per-use: real dollar amounts
One day in Singapore without an international plan: typical phone use runs roughly 450 MB. At AT&T's $2.05/MB pay-per-use rate, that day costs $922. Breakdown: 1 hour of navigation ($102), 30 minutes of Zoom ($922), uploading 20 photos ($410), light social media. One day with a Singapore eSIM on a local network: roughly $0.78 when you spread the plan cost across your trip. AT&T's International Day Pass is $12/day and avoids pay-per-use entirely — but even that costs more than most eSIM plans cover for the same period. Source: AT&T rate card, June 2026.
Personalize your savings
Your Singapore saving against $12 a day
Adjust the trip length, the carrier and the daily data below and the calculator reprices both sides. The starting point is the 4-day average stay recorded for Singapore: $48 on an AT&T day pass at $12 a day, against $13.99 for a 10GB travel eSIM. Both prices buy access to the same local operators.
Network coverage
Singapore roaming network partnerships explained
StarHub runs all cellular service in Singapore. Verizon TravelPass routes you through StarHub at $12/day. A travel eSIM routes through a local network at $0.74/GB. The service is identical. Only the bill changes. Singapore has 5G through StarHub. There is no 5G-premium tier in carrier roaming or eSIM plans. AT&T's $12/day covers 5G. An eSIM at $0.74/GB covers 5G. You do not pay more for faster service under either model. Singapore has widespread 5G coverage. Nationwide 5G standalone coverage achieved in 2025; all carriers offer 5G All three major networks deliver near-identical performance in Singapore due to the small island geography.
Network attachment record
The networks behind both prices in Singapore
HelloRoam publishes 3 local operators for Singapore: M1, SingTel and Starhub.
An eSIM attaches to one of them on arrival.
HelloRoam names no default, so the file cannot say which one your handset picks.
HelloRoam records no 5G operator for Singapore.
Carrier roaming runs on local operators too. That is what a roaming agreement buys.
Same masts, two invoices. The gap on this page is a billing gap.
5G and 4G here are capability labels. Neither one is a speed reading.
The operator file behind this page covers 185 destinations and 154 operators, 98 of those destinations carrying a 5G label. Singapore is one of 68 destinations with more than one operator on file: M1, SingTel and Starhub. Carrier roaming reaches the same radios, so the gap between the two prices is a billing gap.
| Operator | Network generation on file |
|---|---|
| M1 | 4G |
| SingTel | 4G |
| Starhub | 4G |
Source: HelloRoam package feed, read 17 August 2026. The feed publishes an operator list for every destination it sells. No speed test sits behind this table, and we ran none. The full operator map covers 185 destinations.
Pricing breakdown
Price breakdown: roaming vs eSIM in Singapore
Carrier roaming costs for 14 days in Singapore, ranked: T-Mobile high-speed add-on $75, Verizon TravelPass $168, AT&T International Day Pass $120, eSIM 10GB on a local network $7.40. The eSIM option costs 94% less than AT&T, which bills $12 a day.
The eSIM daily rate works out to $0.53 when spread across 14 days. AT&T charges $12/day, which is 22.6x that figure. T-Mobile's high-speed pass is $10/day. All three connect to the same local towers in Singapore. Singapore has expensive local SIMs compared to Southeast Asian neighbors — but excellent value compared to Western roaming rates.
Per-GB rates for Singapore eSIM plans: 1GB at $5.49 ($5.49/GB), 3GB at $5.99 ($2/GB), 5GB at $8.99 ($1.80/GB), 10GB at $13.99 ($1.40/GB), 20GB at $20.49 ($1.02/GB). Larger plans cost less per gigabyte, so buying up one tier saves money if you are close to the limit. Unlimited daily plans remove the per-GB calculation entirely at $2.79/day for 14 days. Singapore eSIM prices premium vs Thailand or Vietnam but 70% cheaper than carrier roaming from US/UK/AU. Travelers in Singapore average 2.0GB of mobile data per day, so a 14-day trip needs roughly 28GB.
Unlimited data for Singapore starts at $3.49 for 1 day and runs to $71.20 for 30, priced 1 day at $3.49, 3 days at $9.95, 7 days at $21.50, 14 days at $39.09, 30 days at $71.20. Unlimited here means 2GB a day at full speed before a fair-use policy applies. Catalogue prices read 29 Oct 2026.
Trip cost breakdown
Carrier roaming vs eSIM cost in Singapore by trip length
AT&T bills $12/day for roaming in Singapore — that is $0.50/hour around the clock, whether your phone is in your pocket or active. A 2GB eSIM on a local network costs $5.99 for 3 days — $0.08/hour at continuous use. Difference for a 3-day trip: $30.01.
Over 14 days, AT&T's per-hour rate stays at $0.36. A 20GB eSIM on a local network for 15GB averages $0.06/hour over the same 14 days. AT&T total: $120. eSIM total: $20.49. Difference: $99.51.
A 30-day stay at $0.17/hour on AT&T reaches $120. A 50GB eSIM on a local network covering 50GB for video calls and streaming costs $42.69 — $0.06/hour. Total difference over 30 days: $77.31 (64%). Rates checked June 2026.
Airport options
Singapore airport data: what it costs and what to skip
The posted price at Changi (SIN)'s Singtel and StarHub and M1 counter is $12-30 for 100GB / 7-28 days. That figure may not include applicable taxes or activation fees added at the counter. Passport or ID is required for SIM registration. A 1GB eSIM at $5.49 is an all-in price paid online — no surprises at checkout. Off-airport shops in Singapore sell SIMs for $10-20 for 30-100GB / 14-28 days, the lower-cost option if you have extra time.
Local alternative
Local SIM vs eSIM in Singapore
A local SIM in Singapore costs $10-20 for 30-100GB / 14-28 days at Singtel and StarHub and M1. A travel eSIM starts at $5.49 for comparison. The trade-off: you wait 5-10 min; Changi has multiple options across terminals at the airport counter, need a passport for registration, and lose your home number while the local SIM is active.
Data planning
GB requirements for 4 days in Singapore
Most Singapore travelers burn through 2.0GB daily: maps, ride-hailing, and restaurant searches add up quickly. Budget 8GB for 4 days.
The 10GB plan covers your 4-day trip for $13.99. AT&T's roaming cost for the same 4 days is $48. The difference is $34.01, enough for two dinners in Singapore. For heavy data users, a 1-day unlimited plan costs $3.49, still under AT&T's $12/day pass.
Connectivity
Trusting public WiFi in Singapore: risks and alternatives
WiFi in Singapore: Wireless@SG provides free public WiFi island-wide; excellent coverage in MRT, malls, and public spaces Coverage is strong in urban areas. Rural spots are less consistent. An eSIM keeps you connected when WiFi drops — directions, translations, and payment apps all need steady data.
Plan your data
Estimating data for a trip to Singapore
AT&T International Day Pass charges $12/day in Singapore. A 4-day trip adds $48 to your bill before you download a single map. A travel eSIM on a local network covers the same 4 days for $13.99 — saving $34.01 (71%).
Singapore has one mobile operator: StarHub. US carriers pay StarHub for roaming access and pass that cost to you at $12/day. An eSIM connects to StarHub directly at $0.74/GB — no carrier markup.
Airport SIM counters at Changi (SIN) charge $12-30 for 100GB / 7-28 days after a 5-10 min; Changi has multiple options across terminals wait — still more than a 10GB eSIM at $13.99. Local prepaid SIMs in Singapore run $10-20 for 30-100GB / 14-28 days, requiring an in-person stop and sometimes a passport copy. An eSIM at $13.99 skips that entirely. Prices stable year-round; frequent promotions at carrier stores
Quick reference
Singapore Travel Essentials
999/995
999, 995 are the emergency numbers in Singapore. Different numbers may route to different services — save all of them before your trip. Emergency calls work from any mobile device, including travel eSIMs.
Type G
Singapore uses Type G outlets (UK-style three large rectangular prongs). US plugs do not fit — bring a Type G travel adapter. Most US phone and laptop chargers are dual-voltage (100-240V) and work fine with just the adapter.
SGT (UTC+8)
SGD (S$)
Tap-to-pay (Apple Pay, Google Pay) is accepted at most stores and restaurants in Singapore. Visa and Mastercard work at virtually all merchants. Carry a small amount of local SGD for markets, taxis, and small vendors that do not have card readers.
Good to know
Average data consumption in Singapore runs around 2.0GB/day for typical tourist use. Factor this into your plan size — a 1GB plan runs out in under a day for video-heavy users. A 5GB plan covers most week-long trips at moderate use.
Quick tip
Singapore law requires identity verification for any physical SIM purchase. Passport required for prepaid SIM purchase; instant activation An eSIM purchased before departure involves no in-country registration process.
Step by step
Switch to an eSIM for Singapore in 6 steps
- On Samsung Galaxy S21 or newer: go to Settings > Connections > SIM manager to verify eSIM support — Pixel 3a and later also qualifies — Singtel covers 5G in Singapore
- First-time buyer: HelloRoam offers Singapore data at $5.49 for 1GB — create an account, add a payment method, and your QR code arrives in under 60 seconds. Compare eSIM providers to see your options.
- First-time eSIM install: your phone walks you through the QR scan step by step — the profile downloads in 10-30 seconds over a WiFi connection — do this before your flight to Changi (SIN) so it activates the moment you land
- Returning traveler shortcut: set your home carrier SIM to Data Off in the dual-SIM panel rather than navigating through roaming menus. The full data roaming guide covers all shortcuts.
- Enable the eSIM data line at Changi (SIN) — it connects to Singtel automatically
- Leave your home SIM enabled for incoming calls: WiFi Calling routes them over the eSIM data connection at no extra cost
Data tips
Data-saving tips for Singapore
Photo backup is a silent data drain. Google Photos and iCloud auto-upload on cellular will consume 20-100 MB per photo session depending on image quality. Turn off auto-backup on cellular before landing in Singapore. Back up manually over hotel WiFi instead. A 10-photo session in RAW format can exceed 500 MB.
Regional context
Asia travel: Singapore mobile data guide
A few things to know before turning off carrier roaming in Singapore:
Singapore SIM registration: Passport required for prepaid SIM purchase; instant activation. A travel eSIM purchased abroad bypasses local SIM registration requirements at the point of sale.
Singapore's 5G standalone network covers 95%+ of the island — among the best 5G experiences globally
Changi Airport has free unlimited WiFi and free phone charging stations throughout all terminals
MRT transit card (EZ-Link) available on Apple Pay and Google Pay alongside eSIM
Singapore has strict content filtering — some sites blocked but VPN use is legal
TPG became Singapore's fourth carrier in 2020, increasing competition and lowering prices
Wireless@SG provides free public WiFi island-wide; excellent coverage in MRT, malls, and public spaces Roaming passes charge $12/day to fill WiFi gaps. An eSIM covers the same connectivity at $0.74/GB.
Singapore's compact size means a single eSIM provides excellent coverage everywhere — no dead zones to worry about.
Year-round destination; peak during Christmas/New Year and European summer holidays
Nearby
Related destinations
6 destinations near Singapore are priced on the same rate card. AT&T bills $12 a day in every one of them, and the figure beside each flag is that destination's own per-gigabyte floor. The cheapest of the group is Bangladesh at $1.25 a gigabyte.
Forgot your eSIM?
You forgot to buy an eSIM for Singapore — here is what to do
Post-arrival eSIM installation in Singapore works from any WiFi connection. No cellular data is required to purchase or install. Changi (SIN) provides free WiFi to arriving passengers in the terminal. Open your preferred provider — HelloRoam, Holafly, Nomad, Airalo, and Saily — and complete the purchase. Each one delivers the eSIM QR code by email and in-app simultaneously. If you miss the airport window, check into your hotel and use the lobby WiFi. Front desks in Singapore provide the WiFi password at check-in. A 1GB plan at $5.49 gives you 1GB of Singtel data from the moment you scan the QR code.
Savings math
How much you save in Singapore
Solo traveler
T-Mobile's Experience plans include 5GB or 15GB of high-speed data abroad, then up to 256Kbps. More high-speed data in Singapore takes International Passes from $10 a day, $40 over 4 days at the cheapest mix (4 × $10 day passes). A 10GB eSIM on a local network delivers full 5G for $13.99. The gap: $26.01 (65%). At 256Kbps the included data is usable mainly for text messages.
Family trip
Two travelers on Verizon in Singapore for 4 days: 2 lines x $12/day x 4 = $96. Two 10GB eSIMs: $27.98. Savings: $68.02 for the couple. If only one person needs heavy data, one eSIM with tethering costs $13.99 total and covers both devices through the phone's hotspot feature.
AT&T roaming rate analysis
AT&T International Day Pass billing for Singapore: $12 covers 24 hours from the first time your phone uses a local network. A background sync after that window closes starts the next $12 fee. AT&T bills at most 10 daily fees per line each bill cycle, and $6 for each extra line used the same day. Over 4 days the pass costs $48. A 10GB eSIM at $13.99 uses data-bucket billing, which charges for data bought, not for days used.
All-carrier summary
AT&T: AT&T International Day Pass costs 243% more than an eSIM for Singapore.
Verizon: Verizon TravelPass costs 243% more than an eSIM for Singapore.
T-Mobile: T-Mobile's International Passes cost 186% more than an eSIM for Singapore.
The savings math for Singapore is clear. Solo: $34.01 saved vs AT&T for 4 days. Family of four: $64.04 saved. Annual (2 trips): $68.02 saved. All figures use the same local 5G network. The eSIM costs less at every trip length and every group size.
Quick answers
Common questions about Singapore data costs
Is eSIM cheaper than roaming in Singapore?
Yes, an eSIM is 71% cheaper than carrier roaming in Singapore. AT&T charges $48 for a 4-day trip at $12/day. A travel eSIM on a local 5G network costs $13.99 for 10GB. Both use the same cell towers. The eSIM saves $34.01 on identical infrastructure. Rates checked June 2026.
How much does roaming cost in Singapore?
AT&T charges $12/day in Singapore. A 7-day trip costs $84. A 14-day trip costs $120. A 4-day trip costs $48. An eSIM alternative on a local network starts at $13.99 for the same network. Rates checked June 2026.
Does T-Mobile work in Singapore?
T-Mobile works in Singapore on its included allowance: Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. For 4 days of high-speed data, the cheapest pass mix is $40 (4 × $10 day passes). A Singtel eSIM delivers full 5G speed for $13.99. Rates checked June 2026.
AT&T fine print for Singapore
$12 covers 24 hours from the first time your phone uses a foreign network, and a single background push notification at 2 AM can start it. AT&T bills at most 10 daily fees per line each bill cycle (terms read 31 Oct 2026).
iCloud Photos, email push, app updates all trigger the daily charge. A phone left in a bag with data roaming on starts a new $12 fee each time a sync lands after the last 24 hours ran out.
Singapore FAQ
Singapore eSIM & roaming questions
Singapore carrier roaming costs $12 a day on AT&T and on Verizon
AT&T charges $12/day on International Day Pass for Singapore. Verizon charges $12/day on TravelPass. T-Mobile's Experience More and Experience Beyond plans include 5GB and 15GB of high-speed data abroad, then at a reduced speed, and Essentials includes texting only. Land without a plan and AT&T bills $2.05/MB, so a single gigabyte costs $2,099. Five travel eSIM providers sell Singapore data against those rates: HelloRoam, Holafly, Nomad, Airalo, and Saily. Fixed plans start at $5.49 for 1GB on a local 5G network. HelloRoam posts the lowest fixed rate in the group, $2.01/GB on the median 5 GB plan across 40 countries, against $2.30 on Nomad. HelloRoam's 7-day unlimited plan has the lowest median of the five at $21.50 across 35 countries, against $27.50 on Holafly. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
T-Mobile's included data in Singapore runs at high speed until the allowance ends
Not past the allowance. T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. A photo message runs 2 MB to 4 MB, about two minutes at 256Kbps, so it drags from Singapore. A travel eSIM delivers full 5G on a local network from $0.74/GB, and HelloRoam at $2.01/GB holds the lowest median 5 GB rate in the market, Nomad next at $2.30. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
Singapore roaming bills by the day, not by the gigabyte
A traveler lands in Singapore, checks one notification, and AT&T bills $12 for the next 24 hours. That is per-day billing: any cellular connection, including a background sync, starts the full 24-hour charge. Without a day pass the rate is $2.05/MB, so a 20 MB burst of photo syncing costs $41. An eSIM is a fixed cost at 1GB for $5.49, with no per-day trigger and no per-MB meter. HelloRoam's unlimited plan removes the meter a different way, at a 7-day median of $21.50 against $27.50 on Holafly. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
A week of Singapore data, priced across the five eSIM providers
A week of unlimited data is the like-for-like price. The median 7-day unlimited plan across the 35 countries where all five were priced costs $21.50 on HelloRoam, $25 on Nomad, $26.99 on Saily, $27 on Airalo, $27.50 on Holafly. In Singapore the 7-day plan reads $21.50 on HelloRoam against $26.99 on Saily, the next cheapest. The plans differ in full-speed data: HelloRoam's plan runs at full speed for 2 GB a day in 33 of those 35 countries, while Airalo's holds 3 GB in most and Holafly states no daily cap. AT&T bills $84 for the same week in Singapore at $12 a day, $62.50 more than the HelloRoam median. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
TikTok and Instagram are the heaviest apps on a Singapore plan
TikTok at standard quality uses 700 MB/hour of viewing. Instagram Stories and Reels use 500-800 MB/hour depending on video resolution. At $0.74/GB on Singtel in Singapore, one hour of TikTok costs roughly $0.52 and one hour of Instagram Reels costs roughly $0.48. AT&T International Day Pass at $12/day covers all social media but applies the full daily fee regardless of how little you use. For travelers who browse social apps 30-60 minutes per day, the eSIM still costs less than one AT&T day fee. Rates checked June 2026.
The three US carriers price Singapore roaming on different terms
None of the three US carriers offer a genuinely good deal in Singapore. AT&T: $12/day. Verizon: $12/day. T-Mobile: 5GB or 15GB of high-speed data included on its Experience plans, then up to 256Kbps, or $10 for a 1 Day pass. A travel eSIM on Singtel starts at $0.74/GB — a 7-day trip at average usage costs $7.77 versus $84 for AT&T. No carrier matches the eSIM on per-GB cost.
A week of Singapore data costs $84 on AT&T
AT&T International Day Pass: $12/day, $84 for 7 days. Verizon TravelPass: $12/day, $84. T-Mobile International Pass: $10/day, $50. The base T-Mobile tier costs nothing but runs too slow to be usable. Against T-Mobile's $10/day pass, a travel eSIM on Singtel runs roughly $7.77 for 7 days at 1.5 GB/day average usage. The eSIM is 80-90% cheaper than any paid carrier option.
Local Singapore apps run on a travel eSIM without a local SIM
Most local apps in Singapore — ride-hailing, food delivery, transit — do not require a local SIM number to function. They require only a data connection, which a travel eSIM provides at $0.74/GB on a local 5G network. Some banking and two-factor authentication apps require a local phone number for SMS verification. For those cases, keep your home SIM active alongside the eSIM — your home number handles SMS while the eSIM handles data.
One eSIM can cover a multi-country Asia route including Singapore
Multi-country Asia eSIM plans exist and cover many combinations — Japan, South Korea, Thailand, Singapore, and others in a single data bucket. AT&T and Verizon charge $12/day in each country separately, so a 3-country trip at 3 days each costs $108. A regional Asia eSIM for the same 9 days runs $15-$40 total. Check plan coverage maps — Singapore may be included in a regional plan, or you may need a Singapore-specific plan plus a regional one.
A week of Singapore carrier roaming costs $84
AT&T: $84/week (International Day Pass at $12/day). Verizon: $84/week (TravelPass). T-Mobile: 5GB or 15GB of high-speed data included on its Experience plans, then up to 256Kbps, or $50 for a week of passes (10-day pass). The cheapest eSIM for Singapore starts at $0.74/GB on a local 5G network — better per-GB value than all three carriers.
Fact check
eSIM and roaming: facts vs. assumptions for Singapore
EU roaming is free for Americans
EU roaming-within-the-EU rules apply only to SIM cards issued by EU-based carriers. AT&T and Verizon are US carriers — they charge full international day pass rates in every EU country. AT&T's International Day Pass runs $12/day in EU destinations. Verizon TravelPass is $12/day. A travel eSIM on a local network covers Singapore for $5.49 total. Rates checked June 2026.
You need to unlock your phone to use an eSIM
eSIM installation does not require an unlocked phone in most cases. iPhones sold in the US since iPhone 14 are sold unlocked by law. iPhones XS through 13 require unlocking to add a foreign carrier eSIM, but AT&T, Verizon, and T-Mobile all offer free unlocking after your contract ends. Samsung Galaxy S20 and newer models support eSIM on both locked and unlocked variants. Check your carrier's unlock policy before your trip to Singapore.
Roaming charges only apply to data
US carrier international plans charge separately for data, calls, and texts. AT&T's International Day Pass at $12/day includes data but charges $0.25–$1.50/minute for calls beyond the bundled allocation. Incoming voicemail retrieval can trigger per-minute roaming charges even when you make no outgoing calls. A data-only eSIM in Singapore at $5.49 covers data and uses WhatsApp or FaceTime for voice at no additional carrier cost. Rates checked June 2026.
Our recommendation
Singapore trip data conclusion
For heavy data users in Singapore: HelloRoam covers Singapore on a local network and scores 9.9/10 on our rubric, the highest of the 5 providers we price. A 1GB plan costs $5.49. Unactivated plans are refundable for 180 days, and its support replies in your own language. Holafly is the alternative for heavy data users: it states no daily cap, at a 7-day unlimited median of $27.50 on 30 Oct 2026.
Learn more
Travel guides, Singapore
4 guides carry the parts of a Singapore trip this page does not price: installing the profile before departure, switching data roaming off on the home SIM, and what happens to the allowance once a fair-use policy applies. Each one reads the same rate card as this page, where AT&T bills $12 a day.
Your carrier charges $84 for a Singapore week. A 20GB eSIM costs $20.49.
Same networks, same speed. eSIM data costs a fraction of carrier roaming in Singapore.
Get a Singapore eSIM