Savings Calculator
Singapore eSIM Savings Calculator: Roaming vs eSIM (2026)
A 4-day trip to Singapore costs $40 in AT&T roaming. A 10GB eSIM costs $13.99 on Singtel's network. You save $26.01 (65%). Enter your trip length below to calculate your savings.
Your carrier's roaming rate in Singapore
| Carrier | Plan | Daily Rate | 7-Day Cost |
|---|---|---|---|
| AT&T | International Day Pass | $10/day | $70 |
| Verizon | TravelPass | $10/day | $70 |
| T-Mobile | Magenta (high-speed add-on) | $15/day | $105 |
AT&T International Day Pass
One week of AT&T roaming in Singapore costs $70 ($10/day through Singtel). An eSIM on Singtel starts at $0.74/GB for the same connection.
Verizon TravelPass
In Singapore, Verizon connects to Singtel towers at $10/day. An eSIM reaches the same towers from $0.74/GB.
T-Mobile Magenta (high-speed add-on)
T-Mobile caps high-speed data at a daily threshold before throttling in Singapore. Once throttled, the $15/day charge continues. An eSIM at $0.74/GB delivers full-speed data up to the plan's GB ceiling with no hidden throttle.
eSIM alternative cost for Singapore
Plan tiers for Singapore
| Tier | Price | Per GB |
|---|---|---|
| 1GB | $5.49 | $5.49 |
| 3GB | $5.99 | $2 |
| 5GB | $8.99 | $1.80 |
| 10GBBest fit | $13.99 | $1.40 |
| 20GB | $20.49 | $1.02 |
Unlimited daily option
| Days | Price | Per Day | Discount |
|---|---|---|---|
| 1 days | $3.35 | $3.35 | 4% |
| 3 days | $9.63 | $3.21 | 8% |
| 7 days | $22.48 | $3.21 | 8% |
| 14 days | $43.49 | $3.11 | 11% |
| 30 days | $85.85 | $2.86 | 18% |
Which provider covers Singapore
The primary provider for Singapore is Airalo, connecting to Singtel's 5G network. Compare all eSIM providers
Savings breakdown
| Trip Length | AT&T | Verizon | T-Mobile HS | eSIM | You Save |
|---|---|---|---|---|---|
| 3 days | $30 | $30 | $45 | $8.99 | $21.01 (70%) |
| 7 days | $70 | $70 | $105 | $20.49 | $49.51 (71%) |
| 14 days | $140 | $140 | $210 | $20.49 | $119.51 (85%) |
| 21 days | $210 | $210 | $315 | $20.49 | $189.51 (90%) |
| 30 days | $300 | $300 | $450 | $20.49 | $279.51 (93%) |
Family and group savings
Carrier roaming charges multiply per person. eSIM savings multiply even faster for groups.
Solo traveler
Carrier: $40
eSIM: $13.99
Save $26.01
Couple
Carrier: $80
eSIM: $27.98
Save $52.02
Family of 4
Carrier: $160
eSIM: $55.96
Save $104.04
Trip length calculator
How much data you need
Maps & navigation
50 MB/hr
Social media
80 MB/hr
Video calls
250 MB/hr
Photo uploads
10 MB/photo
Music streaming
70 MB/hr
Web browsing
60 MB/hr
WiFi availability in Singapore
WiFi in Singapore is rated excellent. Wireless@SG provides free public WiFi island-wide; excellent coverage in MRT, malls, and public spaces
Real savings scenarios for Singapore
Solo traveler
T-Mobile advertises free data in Singapore, but it runs at 256 Kbps. The high-speed upgrade costs $15/day, reaching $60 over 4 days. A 10GB eSIM on Singtel delivers full 5G for $13.99. The gap: $46.01 (77%). T-Mobile's free tier is usable only for plain text messages.
Family trip
Two travelers on Verizon in Singapore for 4 days: 2 lines x $10/day x 4 = $80. Two 10GB eSIMs: $27.98. Savings: $52.02 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.
Business trip
Day 1 in Singapore: AT&T charges $10 the moment you turn on your phone at the airport. Day 2: another $10 triggered by a background sync at 6 AM. Day 3: $10 more, totaling $30 for a 3-day trip. A 10GB eSIM costs $13.99 for all three days combined. For a team of three: AT&T total $120 vs eSIM total $41.97. Savings: $78.03.
Long-stay and digital nomads
A weekend (3-day) trip to Singapore: AT&T roaming costs $30. An eSIM costs roughly $8.99. Savings: $21.01. A 14-day trip: AT&T costs $140. eSIM costs $15.54. Savings: $124.46. Carrier roaming adds $10 for every extra day. An eSIM plan covers a fixed period regardless of daily charges. The break-even point is day one in Singapore.
Frequent traveler annual savings
Annual eSIM savings for 4 trips to Singapore: $104.04. That covers 0 round-trip Uber rides, 2 museum admissions, or 6 meals in Singapore. The data connection is identical on Singtel; the savings go toward experiences.
Extended stay economics
Two weeks in Singapore on AT&T International Day Pass: $10/day x 14 = $140. Verizon TravelPass: $140. T-Mobile high-speed add-on: $210. A 20GB eSIM on Singtel covers the same 14 days for $15.54. That is $124.46 less than AT&T (89% savings). The per-day cost of the eSIM works out to $1.11/day vs AT&T's fixed $10/day. Singapore also has unlimited daily eSIM plans at $3.49/day, which totals $104.70 for 30 days of unrestricted data.
Frequent flyer savings
A traveler who visits Singapore twice a year on AT&T International Day Pass: 2 trips x 4 days x $10/day = $80/year in roaming charges. Two 10GB eSIMs on Singtel: $27.98/year. Annual savings: $52.02. Over five years, that compounds to $260.10 in avoided roaming fees.
Data usage savings
Light data users — email, messaging, occasional maps — use 300-500 MB/day in Singapore. Over 4 days: 1.6 GB total. AT&T still charges the full $10/day regardless: $40. An eSIM at $0.74/GB for 1.6 GB costs $1.18. Light users overpay the most on carrier day passes — the fixed fee exceeds their actual consumption value.
Couples trip savings
When a couple splits up during the day in Singapore (one at a museum, one at a market), each phone needs its own data connection for maps and messaging. Hotspot sharing fails when partners are apart. Two individual 10GB eSIMs at $13.99 each: $27.98 total. AT&T for two lines: $80. Independent eSIMs save $52.02 while providing separate data for separate activities.
UK carrier comparison
EE Roam Abroad in Singapore: GBP6/day for 4 days = GBP24. A 10GB eSIM: $13.99. EE's rest-of-world rate applies to non-EU destinations including Singapore. The eSIM saves approximately $10.01 on the same Singtel network.
Airport SIM vs eSIM
Singapore's Changi (SIN) offers prepaid SIMs at $12-30 for 100GB / 7-28 days with a 5-10 min; Changi has multiple options across terminals wait. An eSIM installs before your flight and activates on landing — no queue, no paperwork.
Our verdict
The savings math for Singapore is clear. Solo: $26.01 saved vs AT&T for 4 days. Family of four: $104.04 saved. Annual (2 trips): $52.02 saved. All figures use the same Singtel 5G network. The eSIM costs less at every trip length and every group size.
How much can I save with eSIM in Singapore?
An eSIM cuts Singapore data costs by 65% compared to carrier roaming. AT&T charges $40 for 4 days. A 10GB eSIM on Singtel costs $13.99. The saved $26.01 covers meals, transportation, or activities in Singapore. Verified May 2026.
How much does roaming cost in Singapore?
AT&T charges $10/day in Singapore. A 7-day trip costs $70. A 14-day trip costs $140. A 4-day trip costs $40. An eSIM alternative on Singtel starts at $13.99 for the same network. Verified May 2026.
Singapore network context
Local networks
Singapore has 1 mobile network. The primary carriers are Singtel, StarHub, M1, TPG.
Speed and coverage
Average download speeds reach 355 Mbps in Singapore. 5G coverage is widespread. Nationwide 5G standalone coverage achieved in 2025; all carriers offer 5G Both carrier roaming and eSIM connect to the same local infrastructure.
Connectivity notes
- 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
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.
Frequently asked questions
- How much does AT&T roaming cost for 4 days in Singapore?
- AT&T International Day Pass charges $10/day in Singapore. A 4-day trip costs $40 in roaming charges. This activates automatically when your phone connects to a local network abroad.
- Is a travel eSIM cheaper than Verizon TravelPass in Singapore?
- Verizon TravelPass charges $10/day in Singapore. A 4-day trip costs $40. A 10GB eSIM covers the same trip for $13.99 on the same local network — saving you 65%.
- How much data do I need for a week in Singapore?
- Most travelers use 1-2 GB per day for maps, messaging, social media, and light browsing. A 7-day trip needs 7-14 GB. Video calls and streaming push usage to 3+ GB per day. Choose a 10GB or 20GB plan for heavy use.
- Can a family share one eSIM in Singapore?
- One eSIM stays in one phone, but most eSIM plans allow tethering (personal hotspot). A family of 4 can share a single 10-20GB eSIM through one phone's hotspot instead of paying $10/day per person for carrier roaming.
- Does T-Mobile free data work in Singapore?
- T-Mobile Magenta includes free data in Singapore, but speed is capped at 256 Kbps. That is too slow for Google Maps, video calls, or uploading photos. The high-speed add-on costs $15/day.
- How much does a 30-day eSIM cost for Singapore?
- A 30-day eSIM for Singapore depends on data volume. Metered plans (5-20GB) typically range from $8 to $35. Unlimited daily plans run $1-2/day. Both connect to the same local network as carrier roaming at a fraction of the cost.
- Is buying a local SIM cheaper than an eSIM in Singapore?
- Local prepaid SIMs in Singapore can be cheaper per GB, but require visiting a store, showing ID, and waiting for activation. An eSIM installs before your flight and activates on landing — no queue, no paperwork, no wasted vacation time.
- How much does carrier roaming cost in Singapore?
- AT&T charges $10/day on International Day Pass for Singapore. Verizon charges $10/day on TravelPass. T-Mobile includes Singapore for free at 256 Kbps — barely fast enough for text messages, not usable for maps or apps. Without any plan, AT&T's pay-per-use rate is $2.05/MB, meaning a single Google Maps session costs over $10. A travel eSIM on Singtel starts at $5.49 for 1GB — the same 5G network at a fraction of the daily roaming cost.
- Is T-Mobile's free international data fast enough in Singapore?
- No. 256 Kbps sounds like it covers light use, but even a single email with an attachment or a 30-second map route takes over a minute to load at that speed. T-Mobile's free tier in Singapore is functional only for plain text messages. The paid upgrade runs $15/day — identical to AT&T's roaming fee. A travel eSIM on Singtel at $0.74/GB costs less per GB than any day-pass option and has no speed restriction.
- How is my roaming bill calculated in Singapore?
- A traveler lands in Singapore, checks one notification, and AT&T bills $10 for the entire calendar day. That is how per-day billing works — any cellular connection, even a background sync at midnight, triggers the full daily charge. Without a day pass, AT&T charges $2.05/MB. A 15-second Instagram scroll could cost $30. An eSIM at 1GB for $5.49 is a fixed cost: no per-day triggers, no per-MB metering, no bill surprises.
- Does my phone automatically connect to roaming in Singapore?
- Yes, if data roaming is enabled. Your phone latches onto Singtel or another Singapore carrier the moment the plane lands and your carrier bills at roaming rates — $10/day with a plan, or $2.05/MB without one. Disable data roaming on your home SIM before boarding. A pre-installed travel eSIM can be set to activate on arrival without triggering home carrier charges.
- How much data does Google Maps use in Singapore?
- Google Maps uses 5-10 MB per hour of active navigation in Singapore. On AT&T pay-per-use that costs $10-20 per hour of driving. On a roaming day pass at $10/day, maps are covered but you pay the daily fee regardless. On a travel eSIM at $0.74/GB on Singtel, a full 8-hour day of navigation costs under $0.10. Download offline maps before departure to cut data usage by 90%.