Savings Calculator
Cambodia eSIM Savings Calculator: Roaming vs eSIM (2026)
A 10-day trip to Cambodia costs $100 in AT&T roaming. A 20GB eSIM costs $28.80 on Cellcard's network. You save $71.20 (71%). Enter your trip length below to calculate your savings.
Your carrier's roaming rate in Cambodia
| 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
AT&T's International Day Pass in Cambodia runs on Cellcard at $10/day. A travel eSIM delivers identical coverage from $1.44/GB.
Verizon TravelPass
Verizon does not publish a per-day data ceiling for its $10 Cambodia pass. In practice, speed throttling has been reported on sustained high-bandwidth use. An eSIM at $1.44/GB specifies a defined GB limit with no undisclosed throttle.
T-Mobile Magenta (high-speed add-on)
T-Mobile's day pass in Cambodia activates the moment your phone connects to Cellcard's network abroad — including the two minutes of background data sync when you land. A full $15 charge runs whether you use 10MB or 10GB that day.
eSIM alternative cost for Cambodia
Plan tiers for Cambodia
| Tier | Price | Per GB |
|---|---|---|
| 1GB | $3.99 | $3.99 |
| 3GB | $7.99 | $2.66 |
| 5GB | $11.49 | $2.30 |
| 10GB | $18.90 | $1.89 |
| 20GBBest fit | $28.80 | $1.44 |
Unlimited daily option
| Days | Price | Per Day | Discount |
|---|---|---|---|
| 1 days | $3.51 | $3.51 | 4% |
| 3 days | $10.10 | $3.37 | 8% |
| 7 days | $23.57 | $3.37 | 8% |
| 14 days | $45.60 | $3.26 | 11% |
| 30 days | $90.04 | $3 | 18% |
Which provider covers Cambodia
The primary provider for Cambodia is Airalo, connecting to Cellcard's 4G LTE network. Compare all eSIM providers
Savings breakdown
| Trip Length | AT&T | Verizon | T-Mobile HS | eSIM | You Save |
|---|---|---|---|---|---|
| 3 days | $30 | $30 | $45 | $11.49 | $18.51 (62%) |
| 7 days | $70 | $70 | $105 | $28.80 | $41.20 (59%) |
| 14 days | $140 | $140 | $210 | $28.80 | $111.20 (79%) |
| 21 days | $210 | $210 | $315 | $28.80 | $181.20 (86%) |
| 30 days | $300 | $300 | $450 | $28.80 | $271.20 (90%) |
Family and group savings
Carrier roaming charges multiply per person. eSIM savings multiply even faster for groups.
Solo traveler
Carrier: $100
eSIM: $28.80
Save $71.20
Couple
Carrier: $200
eSIM: $57.60
Save $142.40
Family of 4
Carrier: $400
eSIM: $115.20
Save $284.80
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 Cambodia
WiFi in Cambodia is rated good. Use eSIM data to fill the gaps when WiFi is unavailable or unreliable.
Real savings scenarios for Cambodia
Solo traveler
A solo traveler on AT&T International Day Pass in Cambodia for 10 days: $10/day x 10 days = $100. A 20GB eSIM on Cellcard costs $28.80 for the same 10 days. Savings: $71.20 (71%). Both options connect to Cellcard's 4G LTE towers. The arithmetic is simple: one fixed payment versus 10 daily charges.
Family trip
A family that takes two international trips per year saves $569.60 annually by switching from AT&T roaming to eSIMs. Per trip: AT&T bills $400 (4 lines x $10/day x 10 days). Four eSIMs cost $115.20 per trip. Over five years, the cumulative savings reach $2848.
Business trip
Corporate travel budget impact for Cambodia: a frequent traveler making 4 trips per year saves $84.80 annually by switching from AT&T to eSIM. A team of five making the same trips saves $424 per year. Per trip: AT&T $50 vs eSIM $28.80 per person for 5 days. Both connect to Cellcard. The savings scale linearly with headcount and trip frequency.
Long-stay and digital nomads
For long stays in Cambodia, the savings compound daily. AT&T at $10/day reaches $300 at 30 days. Two eSIM plan purchases cover the same period at roughly $129.60. An unlimited daily eSIM at $3.66/day costs $109.80 for 30 days. The eSIM costs less than one week of AT&T roaming for a full month of data.
Frequent traveler annual savings
A road warrior making 6 trips to Cambodia per year: AT&T: 6 x $100 = $600/year. eSIM: 6 x $28.80 = $172.80/year. Annual savings: $427.20 (71%). That savings figure grows every year carriers maintain their current rates.
Extended stay economics
Snowbirds and seasonal travelers spending 60-90 days in Cambodia: AT&T at $10/day for 60 days costs $600. For 90 days: $900. Two consecutive 30-day eSIM plans on Cellcard: $172.80 for 60 days. Three plans for 90 days: $259.20. Savings over 90 days vs AT&T: $640.80.
Frequent flyer savings
Verizon TravelPass compounds faster for families. A family of four taking 2 trips to Cambodia per year: 4 lines x $10/day x 10 days x 2 trips = $800/year. Eight eSIMs (4 per trip x 2 trips): $230.40/year. Family annual savings: $569.60.
Data usage savings
Light data users — email, messaging, occasional maps — use 300-500 MB/day in Cambodia. Over 10 days: 4.0 GB total. AT&T still charges the full $10/day regardless: $100. An eSIM at $1.44/GB for 4.0 GB costs $5.76. Light users overpay the most on carrier day passes — the fixed fee exceeds their actual consumption value.
Couples trip savings
The lowest-cost option for couples in Cambodia: one 20GB eSIM at $28.80, shared via hotspot. The second phone connects through the first phone's WiFi hotspot. Total cost: $28.80 for both devices over 10 days. Compare: AT&T charges $200 for two lines ($10/day each). Savings: $171.20. Trade-off: the second phone needs to stay within WiFi hotspot range of the first.
UK carrier comparison
A UK family of four visiting Cambodia: Vodafone: 4 x GBP6/day x 10 = GBP240. EE: 4 x GBP6/day x 10 = GBP240. Four eSIMs: $115.20. Family savings vs Vodafone: roughly $189.60 USD equivalent.
Airport SIM vs eSIM
Cambodia's Phnom Penh (PNH) / Siem Reap (SAI) offers prepaid SIMs at $2-5 for 5-20GB / 28 days with a 15-30 minute wait. An eSIM installs before your flight and activates on landing — no queue, no paperwork.
Our verdict
The savings math for Cambodia is clear. Solo: $71.20 saved vs AT&T for 10 days. Family of four: $284.80 saved. Annual (2 trips): $142.40 saved. All figures use the same Cellcard 4G LTE network. The eSIM costs less at every trip length and every group size.
How much can I save with eSIM in Cambodia?
You save $7.12 per day by switching from AT&T roaming to eSIM in Cambodia. An eSIM averages $2.88/day on Cellcard. AT&T charges $10/day. Over a 10-day trip, the total savings are $71.20. Rates verified May 2026.
How much does roaming cost in Cambodia?
AT&T charges $10/day in Cambodia. A 7-day trip costs $70. A 14-day trip costs $140. A 10-day trip costs $100. An eSIM alternative on Cellcard starts at $28.80 for the same network. Verified May 2026.
Cambodia network context
Local networks
Cambodia has 1 mobile network. The primary carriers are Cellcard, Smart Axiata, Metfone.
Speed and coverage
Average download speeds reach 20 Mbps in Cambodia. Cambodia currently operates on 4G LTE. Both carrier roaming and eSIM connect to the same local infrastructure.
Connectivity notes
- Cambodia uses USD alongside Cambodian riel
- Metfone (Viettel) has widest coverage
- Incredibly cheap mobile data — under $3 for 15GB
Quick tip
Prices in Cambodia are in KHR (៛). Buying an eSIM in USD before departure removes the variable of exchange rates affecting your data cost mid-trip.
Good to know
Power sockets in Cambodia are Type A/C/G type. US and UK plugs don't fit without an adapter. A depleted phone ends your eSIM connectivity regardless of remaining data balance.
Frequently asked questions
- How much does AT&T roaming cost for 10 days in Cambodia?
- AT&T International Day Pass charges $10/day in Cambodia. A 10-day trip costs $100 in roaming charges. This activates automatically when your phone connects to a local network abroad.
- Is a travel eSIM cheaper than Verizon TravelPass in Cambodia?
- Verizon TravelPass charges $10/day in Cambodia. A 10-day trip costs $100. A 20GB eSIM covers the same trip for $28.80 on the same local network — saving you 71%.
- How much data do I need for a week in Cambodia?
- 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 Cambodia?
- 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 Cambodia?
- T-Mobile Magenta includes free data in Cambodia, 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 Cambodia?
- A 30-day eSIM for Cambodia 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.
- How much does carrier roaming cost in Cambodia?
- AT&T: $10/day ($70/week). Verizon: $10/day ($70/week). T-Mobile: free but throttled to 256 Kbps; high-speed add-on costs $15/day. Travel eSIM on Cellcard: $3.99 for 1GB. All four options route through the same Cellcard towers in Cambodia. The price gap between carrier roaming and eSIM is $70 versus the eSIM rate for a 7-day trip.
- Is T-Mobile's free international data fast enough in Cambodia?
- No. T-Mobile's free tier in Cambodia runs at 256 Kbps — too slow for GPS navigation, video calls, or any app that loads images. You can send basic text messages and that is about it. The high-speed upgrade costs $15/day, matching AT&T's roaming fee. A travel eSIM on Cellcard provides full 4G LTE speeds at $1.44/GB with no daily activation triggers.
- How is my roaming bill calculated in Cambodia?
- Relying on hotel WiFi does not prevent roaming charges in Cambodia. AT&T's per-day charge fires from any background cellular contact — your phone does not need an active app, just a brief tower handshake. Per-MB billing at $2.05/MB is even more dangerous with background syncs. T-Mobile's 256 Kbps free tier sidesteps per-day billing but is too slow for apps. A travel eSIM at 1GB for $3.99 gives you full 4G LTE and locks the total cost before you board.
- Can I send and receive SMS texts with a travel eSIM in Cambodia?
- Data-only eSIM plans in Cambodia do not include SMS. Text messages go through your home SIM. With data roaming disabled on your home SIM, incoming SMS still arrives because texts travel on the voice network, not the data network. iMessage and WhatsApp messages route over the eSIM's data connection on Cellcard at $1.44/GB. Standard SMS from your home number works without activating data roaming. The cost risk: if your home SIM accidentally connects data in Cambodia, AT&T charges $10/day or $2.05/MB. Keep data roaming disabled on the home SIM. Rates checked June 2026.
- Can I stream Netflix and YouTube on a travel eSIM in Cambodia?
- Yes. Cellcard's 4G LTE network in Cambodia supports streaming without buffering under normal conditions. Data consumption: Netflix SD uses 700 MB/hour, HD uses 3 GB/hour, 4K uses 7 GB/hour. YouTube at 720p uses 900 MB/hour. AT&T International Day Pass at $10/day covers streaming but bills daily regardless of usage. A travel eSIM at $1.44/GB charges per GB consumed — 2 hours of Netflix HD costs roughly $8.64. Download content over hotel WiFi before heading out to cut cellular data use by 90% for entertainment. Rates checked June 2026.