Savings Calculator
How Much You Save with eSIM vs Carrier Roaming in China (2026)
Carrier roaming in China runs $10-$15/day. A 8-day trip costs $80-$120. An eSIM on China Mobile delivers the same connection for $35.99. The math below shows exactly how much you keep.
Your carrier's roaming rate in China
| 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 does not require you to enable the $10/day China pass manually. Your phone connects to China Mobile automatically on landing. The charge appears unless data roaming is switched off before the plane door opens.
Verizon TravelPass
Verizon pays China Mobile for roaming access in China and charges you $10/day. A travel eSIM bypasses that arrangement at $1.08/GB on the same China Mobile towers.
T-Mobile Magenta (high-speed add-on)
In China, T-Mobile connects to China Mobile towers at $15/day. An eSIM reaches the same towers from $1.08/GB.
eSIM alternative cost for China
Plan tiers for China
| Tier | Price | Per GB |
|---|---|---|
| 1GB | $3.49 | $3.49 |
| 3GB | $9.49 | $3.16 |
| 5GB | $13.99 | $2.80 |
| 10GB | $23.49 | $2.35 |
| 20GBBest fit | $35.99 | $1.80 |
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 China
The primary provider for China is Airalo, connecting to China Mobile'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 | $13.99 | $16.01 (53%) |
| 7 days | $70 | $70 | $105 | $35.99 | $34.01 (49%) |
| 14 days | $140 | $140 | $210 | $35.99 | $104.01 (74%) |
| 21 days | $210 | $210 | $315 | $35.99 | $174.01 (83%) |
| 30 days | $300 | $300 | $450 | $35.99 | $264.01 (88%) |
Family and group savings
Carrier roaming charges multiply per person. eSIM savings multiply even faster for groups.
Solo traveler
Carrier: $80
eSIM: $35.99
Save $44.01
Couple
Carrier: $160
eSIM: $71.98
Save $88.02
Family of 4
Carrier: $320
eSIM: $143.96
Save $176.04
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 China
WiFi in China is rated good. Free WiFi in most hotels and cafes; many require Chinese phone number for login
Real savings scenarios for China
Solo traveler
Solo trip to China, 8 days. AT&T: $10/day x 8 = $80. Verizon: $10/day x 8 = $80. T-Mobile high-speed: $15/day x 8 = $120. eSIM 20GB on China Mobile: $35.99. The eSIM saves $44.01 vs AT&T, $44.01 vs Verizon, and $84.01 vs T-Mobile's paid tier.
Family trip
Families with mixed carriers — one parent on AT&T, one on Verizon, kids on T-Mobile — face $50/day in combined roaming for China. Over 8 days: $400. Four eSIMs on China Mobile at $35.99 each: $143.96. Savings: $256.04. One purchase per person, no coordination between carriers.
Business trip
Five employees attending a conference in China for 5 days: AT&T roaming for the team: 5 x $10/day x 5 = $250. Five 20GB eSIMs: $179.95. Team savings: $70.05. All five connect to China Mobile's 5G network. The eSIM receipts are cleaner for expense processing: one charge per person, no daily line items.
Long-stay and digital nomads
Seasonal residents spending 60-90 days in China: AT&T roaming at $10/day for 60 days = $600. For 90 days: $900. An unlimited eSIM at $3.49/day for 90 days: $314.10. At these durations, a local SIM card or a monthly local plan becomes the most cost-effective option. But compared to keeping AT&T or Verizon roaming active, an eSIM saves $608.40 over a 90-day stay.
Frequent traveler annual savings
If China is one stop on a multi-destination travel year: AT&T charges $10/day in every country. eSIM prices vary by destination. For China alone: $80 (AT&T) vs $35.99 (eSIM) per 8-day trip. Across 4 international trips averaging 8 days each, AT&T charges $320 in roaming alone. eSIMs for the same itineraries run 80-95% less per trip.
Extended stay economics
A remote worker billing a client for China connectivity: AT&T line item: $300/month. Coworking space WiFi in China: $50-$150/month. eSIM on China Mobile: $64.80/month. The eSIM provides cellular backup when coworking WiFi drops during client calls. AT&T's Day Pass does the same but costs $235.20 more per month. Over a 3-month stay: AT&T totals $900, eSIM totals $194.40.
Frequent flyer savings
Business travelers averaging 4 international trips per year: 4 trips to China at 8 days each = 32 days of roaming. AT&T: $320/year. Four eSIMs: $143.96/year. Annual savings: $176.04 per employee. A company with 10 traveling employees saves $1760.40/year.
Data usage savings
A traveler using Google Maps 3 hours/day in China consumes 24 MB/day in navigation data. Over 8 days: 192 MB (0.2 GB). AT&T charges $10/day regardless of how little data you use. An eSIM at $1.08/GB on China Mobile charges $0.21 for navigation alone. The eSIM's per-activity cost is a fraction of the per-day fee.
Couples trip savings
The lowest-cost option for couples in China: one 20GB eSIM at $35.99, shared via hotspot. The second phone connects through the first phone's WiFi hotspot. Total cost: $35.99 for both devices over 8 days. Compare: AT&T charges $160 for two lines ($10/day each). Savings: $124.01. Trade-off: the second phone needs to stay within WiFi hotspot range of the first.
UK carrier comparison
Vodafone and EE apply fair-use data caps to roaming in China. Once the cap is reached, speed drops to near-2G levels while the GBP6/day charge continues. The fair-use threshold is not published prominently. A 20GB eSIM at $35.99 has a stated data ceiling with no hidden throttle. You know exactly how much data you get and the speed does not degrade until the plan is fully consumed.
Airport SIM vs eSIM
China's Beijing Capital (PEK) / Pudong (PVG) / Daxing (PKX) offers prepaid SIMs at $15-30 for 3-10GB / 7-30 days with a 20-40 min; real-name verification process wait. An eSIM installs before your flight and activates on landing — no queue, no paperwork.
Our verdict
Bottom line for China: the eSIM wins. $35.99 for 20GB on China Mobile vs $80 on AT&T for 8 days. Same towers, same speeds, 55% lower cost. No daily triggers, no per-MB billing, no bill surprises from background app syncs.
How much can I save with eSIM in China?
eSIM savings in China scale with trip length. A 7-day trip saves $34.01 vs AT&T ($70 roaming vs $35.99 eSIM). A 14-day trip saves $104.01 ($140 vs $35.99). Both connect to China Mobile's network. Rates verified May 2026.
How much does roaming cost in China?
Roaming in China costs $10/day on AT&T ($80 for 8 days), $10/day on Verizon ($80), and $15/day on T-Mobile for high-speed data ($120). A travel eSIM on China Mobile costs $35.99 for 20GB. Rates verified May 2026.
China network context
Local networks
China has 1 mobile network. The primary carriers are China Mobile, China Unicom, China Telecom.
Speed and coverage
Average download speeds reach 180 Mbps in China. 5G coverage is widespread. World's largest 5G network with 3.5M+ base stations; covers all major cities and many rural areas Both carrier roaming and eSIM connect to the same local infrastructure.
Connectivity notes
VPN usage is blocked in China. Great Firewall blocks most VPN services; only government-approved VPNs technically legal; travelers should install VPN before arrival
- Google, WhatsApp, Facebook, Instagram, YouTube, and most Western apps are blocked by the Great Firewall
- WeChat and Alipay are essential for payments — but foreign card linking is now easier since 2024 reforms
- Travel eSIMs from providers like BitJoy route data through foreign servers, bypassing the Great Firewall
- Install VPN and all necessary apps BEFORE arriving — VPN websites and app stores are blocked inside China
- Golden Week (October 1-7) sees 800+ million domestic trips — avoid this period for less crowded tourism
Good to know
Average data consumption in China runs around 1.5GB/day for typical tourist use. Map downloads, streaming, and video calls are the biggest data draws. Buy one size larger than your estimate — topping up mid-trip often costs more per GB than the original plan.
Quick tip
China requires passport-based SIM registration for physical SIMs. A travel eSIM bypasses this requirement entirely — no paperwork, no waiting.
Frequently asked questions
- How much does AT&T roaming cost for 8 days in China?
- AT&T International Day Pass charges $10/day in China. A 8-day trip costs $80 in roaming charges. This activates automatically when your phone connects to a local network abroad.
- Is a travel eSIM cheaper than Verizon TravelPass in China?
- Verizon TravelPass charges $10/day in China. A 8-day trip costs $80. A 20GB eSIM covers the same trip for $35.99 on the same local network — saving you 55%.
- How much data do I need for a week in China?
- 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 China?
- 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 China?
- T-Mobile Magenta includes free data in China, 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 China?
- A 30-day eSIM for China 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 China?
- Local prepaid SIMs in China 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 China?
- T-Mobile includes China in its free international plan, but throttles every connection to 256 Kbps — one-eighth the speed of basic 2G. AT&T costs $10/day, Verizon costs $10/day. A travel eSIM on China Mobile at $3.49 for 1GB provides full 5G — the same towers, none of the speed cap, and less money than either paid carrier option.
- Is T-Mobile's free international data fast enough in China?
- No. T-Mobile caps free international data at 256 Kbps in China — one-eighth the speed of basic 2G. At that rate, Google Maps takes 15+ seconds to load a single tile and will not work for navigation. Streaming video requires at least 1.5 Mbps; video calls need 2 Mbps. Basic WhatsApp text messages work, but anything else does not. T-Mobile's high-speed add-on for China costs $15/day. A travel eSIM on China Mobile's 5G network delivers full local speeds at $1.08/GB — cheaper per GB than the speed upgrade.
- How is my roaming bill calculated in China?
- Your carrier uses one of two models. Per-day billing: AT&T charges $10 and Verizon charges $10 for each calendar day your phone connects in China — even if you only check a notification at midnight. Per-MB billing: without a day pass, AT&T charges $2.05 per megabyte, which adds up to $2,099 per GB. Both models penalize casual background data usage. A travel eSIM uses flat-rate billing — you pay 1GB for $3.49 upfront, with no per-day activations and no per-MB overages. Once purchased, the cost is fixed regardless of usage patterns.
- Is Wi-Fi calling a good alternative to roaming in China?
- For calls and SMS, yes — WiFi Calling routes your home number through any internet connection for free. But it does not cover data. In China, WiFi outside hotels and airports is patchy. An eSIM at $1.08/GB on China Mobile gives you continuous 5G data for maps, transit apps, and messaging when WiFi is unavailable. WiFi Calling and an eSIM work together as a complete solution.
- Does unused eSIM data carry over after my trip to China?
- No. Travel eSIM plans for China do not roll over unused data. If you buy a 5 GB plan and use 3 GB, the remaining 2 GB expires when the plan ends. Carrier roaming plans work the same way — AT&T International Day Pass at $10/day gives you access to your home data allowance but that allowance does not roll forward either. The practical approach: buy a plan size close to your expected usage. On China Mobile's network at $1.08/GB, one size up costs little and prevents running out mid-trip. Rates checked June 2026.