Where to buy a SIM card in Nha Trang and how much does mobile data cost?

Tip for eSIM (e.g. bought via trip.com): activate the profile before the trip but don't turn it on until you land — just switch it on after arrival and it works. Free Wi-Fi is available at the airports.

Complaint about a trip.com eSIM: it worked fine at a Cam Ranh hotel, but 5–10 km toward Nha Trang, despite full 5G signal, there was no actual internet — suggesting a data coverage issue in the Nha Trang area with some eSIM providers.

Without a local SIM, Wi-Fi is either available or costly. An eSIM is very cheap — around 5 GB per day with 5G connection.

Near Happy Beach, Wi-Fi runs at 100 Mbps both up and down — videos upload and download instantly.

SIM cards are available at carrier stores throughout the city — bring your passport or a photo of it. A 30-day plan with 6–8 GB per day costs around 200,000 VND. You may not need much data since hotels, supermarkets, and resorts all offer Wi-Fi.

Wi-Fi is widely available in Nha Trang — on buses, in cafes, hotels, and even at beach bars. If you need mobile data, eSIM plans with 500 MB/day are sold on the trip for about 12 RUB/day. The downside is daily renewal; larger packages are available at a slightly higher price.