eSIM for Cox's Bazar
Cox's Bazar is home to the longest natural sea beach in the world: an unbroken 120-kilometre stretch of sand along the Bay of Bengal that is one of Bangladesh's most popular domestic tourist destinations. The town itself is a busy resort hub, and the beach extends south through Inani and toward the fishing communities near the Myanmar border. Connectivity in Cox's Bazar town and along the main beach strip is solid: Grameenphone and Robi both provide 4G across the resort area and the central beach. Coverage is generally good for a regional destination, though it can thin in the more remote southern beach sections and on the approach roads. Saint Martin's Island, the only coral island in Bangladesh (a separate boat trip from Cox's Bazar via Teknaf), has more limited and variable coverage; Grameenphone is the most reliable there. Bangladesh has no permanent content blocking. The drive from Chittagong to Cox's Bazar (150km) has 4G on the main highway. As elsewhere in Bangladesh, keep a VPN and offline maps for temporary shutdowns and remote stretches. Cox's Bazar received a new airport terminal and improved road and rail links from Dhaka in recent years, increasing visitor numbers significantly. The new Dhaka-Cox's Bazar railway has made the journey more comfortable, with 4G in the carriages on most of the route. For travellers, the connectivity reality is that the resort core is well served but the experience the area is famous for, the empty stretches of the world's longest beach toward the south, is where signal fades. This is part of the appeal but means downloading maps and informing contacts before long beach walks south of the main resort zone.
An eSIM Bangladesh gives you access to the same plans in Cox's Bazar as in the rest of the country. 5 GB is generally enough for maps, messaging and social media, while video streaming and hotspot use require more data. The plans shown range from 1 to 20 GB and start at $1.90. They are fully refundable within 30 days provided the eSIM has not been used on a network at the destination. The activation link is sent by email after purchase.
Getting connected in Cox's Bazar
Install your eSIM before travel or buy a Grameenphone SIM at Cox's Bazar Airport or in town. Grameenphone and Robi both have 4G across the resort area and central beach. Bangladesh has no permanent content blocking. For Saint Martin's Island (a boat trip from Teknaf, 80km south): download offline maps before departure as island coverage is variable; Grameenphone is the most reliable network there. For the remote southern beach sections toward the Myanmar border: coverage thins, so download offline maps. Keep a VPN for temporary shutdowns.
Bangladesh eSIM plans
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Coverage in Cox's Bazar
Cox's Bazar town and central beach (Laboni, Sugandha, Kolatoli points): 4G Grameenphone and Robi. Inani Beach (south): 4G near the resorts, thinning further south. Himchari (waterfall area): 4G near the road. Teknaf (boat departure for Saint Martin's, 80km south): 4G in town. Saint Martin's Island: variable, Grameenphone most reliable, some areas 3G or no signal. Chittagong to Cox's Bazar highway (150km): 4G on main road. Cox's Bazar Airport: 4G.
Best network here
Grameenphone (widest); Robi (strong in town)
| Area | Best network | What to expect |
|---|---|---|
| Central beach (Laboni, Sugandha, Kolatoli) | Grameenphone/Robi 4G | 4G across the main beach strip and resort hotels. Good for sharing sunset photos. |
| Cox's Bazar town centre | Grameenphone 4G | 4G in the busy resort town. Burmese Market and main bazaar: 4G. |
| Inani Beach (south) | Grameenphone 4G | 4G near the resorts. Coverage thins further south toward the remote sections. |
| Himchari (waterfall and viewpoint) | Grameenphone 4G | 4G near the access road. The hilltop viewpoints: 3G-4G. |
| Teknaf (Saint Martin's boat departure) | Grameenphone 4G | 4G in the town at the southern tip. Last reliable signal before the island boat. |
| Saint Martin's Island | Grameenphone 3G/4G | Variable. Grameenphone most reliable. Some areas 3G or no signal. Download maps in Teknaf. |
Where to stay and connect in Cox's Bazar
Kolatoli (main resort and hotel zone)
4G. The busiest part of the beach with most accommodation.
Sugandha Point (beach access and food stalls)
4G. Popular sunset gathering point.
Inani (quieter southern beach)
4G near resorts, thinning further south.
Staying online while you move
Cox's Bazar Airport: 4G. Flights and buses from Dhaka and Chittagong. The Chittagong-Cox's Bazar highway (150km): 4G on the main road. Local transport: CNG auto-rickshaws and rented scooters. Boat to Saint Martin's from Teknaf: 4G near the ports, variable on the open water.
How much data in Cox's Bazar
Cox's Bazar town and the main beach have reliable 4G. Budget 1.5GB per day. For Saint Martin's Island: download offline maps in Teknaf before the boat; island coverage is variable. For remote southern beaches: download maps. Bangladesh has no permanent blocking but keep a VPN for temporary shutdowns. Grameenphone is the most reliable network in the region.
Apps worth having in Cox's Bazar
| App | Why it helps here |
|---|---|
| Google Maps (offline Cox's Bazar / Saint Martin's tile) | Download before remote beach trips and the Saint Martin's boat. Island coverage is variable. |
| Grameenphone (local network) | The most reliable network for Cox's Bazar and Saint Martin's Island. Confirm your eSIM uses it for remote areas. |
| Works normally where signal exists. Keep a VPN for temporary shutdowns. | |
| Pathao | Available in Cox's Bazar for local rides. Works on data. |
| Bkash | Bangladesh mobile payment app, widely used. Useful for local transactions. |
Practical data tips for Cox's Bazar
- Grameenphone is the most reliable network in Cox's Bazar and on Saint Martin's Island. Confirm your eSIM uses it.
- Download offline maps in Teknaf before the Saint Martin's Island boat. Island coverage is variable.
- The central beach (Laboni, Sugandha, Kolatoli) has 4G. Remote southern beaches thin out.
- Bangladesh has no permanent blocking but keep a VPN for temporary shutdowns.
- Saint Martin's Island can have no signal in some areas. Inform contacts before the day or overnight trip.
- The Chittagong to Cox's Bazar highway (150km) has 4G on the main road for the journey.
- The new Dhaka-Cox's Bazar railway has 4G in the carriages on most of the route. A comfortable alternative to the bus.
- The world's longest beach extends 120km. The empty southern stretches have thinning signal; download maps before long walks.
Cox's Bazar eSIM FAQ
Is there mobile signal on Cox's Bazar beach?
Yes. 4G from Grameenphone and Robi across the central beach strip (Laboni, Sugandha, Kolatoli) and the resort town. Coverage thins on the remote southern beach sections toward the Myanmar border.
What is the signal like on Saint Martin's Island?
Variable. Grameenphone is the most reliable network on the island, but some areas have only 3G or no signal at all. Download offline maps in Teknaf before the boat trip and inform contacts of your plans.
Which operator is best for Cox's Bazar?
Grameenphone. It has the widest coverage in the region including the most reliable signal on Saint Martin's Island. Robi is strong in the town and on the central beach.
Are there internet restrictions in Cox's Bazar?
No permanent content blocking. WhatsApp and social media work normally where signal exists. Keep a VPN for the temporary nationwide shutdowns that Bangladesh occasionally imposes during political unrest.
How do I get from Dhaka to Cox's Bazar and is there signal on the way?
By domestic flight (1 hour), the new railway, or bus. The new Dhaka-Cox's Bazar railway has 4G in the carriages for most of the route. The Chittagong-Cox's Bazar highway has 4G on the main road. Grameenphone is the most reliable network throughout.
Planning your Bangladesh trip?
See the full Bangladesh eSIM guide: operators, coverage, real prices and the honest verdict.
Your Bangladesh eSIM connects to the networks of the 2 local operators: Banglalink, Grameenphone. Based on our agreements with the network provider, we normally activate the best available operator for your plan and your location.