Product info
Texas eSIM plans
| Unlimited data · 5 days | $17.99 | Buy eSIM |
| Ohayu recommendsUnlimited data · 10 days | $33.99 | Buy eSIM |
| Unlimited data · 15 days | $39.99 | Buy eSIM |
| 3GB prepaid eSIM · 14 days | $8.49$2.83 / GB | Buy eSIM |
| 5GB prepaid eSIM · 30 days | $13.49$2.70 / GB | Buy eSIM |
| 10GB prepaid eSIM · 30 days | $21.49$2.15 / GB | Buy eSIM |
| 15GB prepaid eSIM · 60 days | $27.79$1.85 / GB | Buy eSIM |
| 20GB prepaid eSIM · 90 days | $34.49$1.72 / GB | Buy eSIM |
| 50GB prepaid eSIM · 90 days | $73.49$1.47 / GB | Buy eSIM |
You can install your eSIM before the trip and activate it when you arrive in United States. Validity starts after eSIM activation.
Plan details
How much mobile data you need
What's the best eSIM for Texas?
One city, few days – 3 GB
Maps and rideshare.
A week driving – 10 GB
Long-distance navigation between cities.
Dallas, Austin, Houston – 20 GB
The triangle on one plan.
Festival or business week – Unlimited
Tethering, with the SXSW congestion caveat.
Coverage and network
Coverage over long distances
United States mobile networks
Texas is bigger than France, and that is the whole story of its coverage. The triangle between Dallas, Houston and San Antonio is well served and the interstates hold up. West of the Pecos, distances between towers start to show. (Speedtest by Ookla, June 2026)
Speedtest Global Index · Mobile · United States · June 2026
Download
197.34 Mbps
Upload
10.35 Mbps
Latency
27 ms
Global rank
#10 of 98
The triangle versus west Texas
- Dallas, Houston, Austin, San Antonio: Strong 5G in all four and across their suburbs. No issues with tethering or calls.
- I-35 and I-10: Continuous along the busy corridors. The far western run of I-10 toward El Paso has stretches where it drops to nothing.
- Big Bend and the Davis Mountains: Effectively offline. The park is larger than Rhode Island with almost no coverage, and the approach roads are sparse too.
- SXSW and big event weeks: Central Austin gets heavily congested during SXSW and ACL. It slows for everyone on every network, not just visitors.
A very large state, and 49 others
The plan runs nationwide, so a Texas trip that ends in New Orleans or Denver is already covered.
How to install eSIM
Connected in 3 steps
- 01
Buy before you fly
Choose your data plan before your trip.
- 02
Download & install
Log in to your account, tap your eSIM, and follow the on-screen instructions.
- 03
Land & activate
Activate when you arrive in United States. Turn on roaming for the eSIM and it connects to a local network.
Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.
Arriving in Texas
Airport Wi-Fi at DFW, IAH and AUS
DFW's AT&T-run network and Houston's are both open. Austin gives four hours free.
Side by side
Texas eSIM Comparison
Indicative comparison based on publicly listed USA plans as of July 2026. Competitor pricing and policies change - check their sites for current terms.
Frequently asked questions
Where to buy a SIM card in Texas?
All three big airports have carrier kiosks at a premium. Walmart, Target or H-E-B in town will be cheaper. An eSIM skips it.
Do Texas stores want ID for a prepaid SIM?
They do not need it. There is no federal prepaid registration requirement, so the sale is just a sale. An eSIM bypasses the counter entirely.
Will it work in Big Bend or on the drive to El Paso?
Big Bend, essentially no - the park is enormous and almost entirely without coverage, as are many of the approach roads. The western run of I-10 has long gaps too. Download offline maps, tell someone your route, and do not rely on a phone for emergencies out there.
eSIM not working in Texas?
In west Texas or Big Bend the likely answer is that there is no tower within range. Nearer a city, check the Ohayu eSIM is your data line, roaming is enabled, then cycle Airplane mode. Chat and support@ohayu.com are open 24/7.
