The first time I flew into Dhaka for a garment-sector project, I arrived at Hazrat Shahjalal at two in the morning and spent the taxi ride to Gulshan trying to explain to the driver that my phone could not load the hotel's address. He knew the hotel, fortunately, but when we arrived the security desk couldn't find my reservation and I couldn't pull up the confirmation email. The Grameenphone counter at the airport had been closed for the night. I slept on a lobby couch until the 24-hour business desk could sort the booking in the morning. An eSIM installed at the Doha layover would have let me check email on the drive and avoided the whole mess.
Why buying an eSIM beats the airport kiosk
Grameenphone, Robi, and Banglalink all operate prepaid counters at Hazrat Shahjalal. A SIM is a real option for long stays or for anyone living in Bangladesh, which requires National ID-style verification on local numbers. But the counters require your passport, a local address, and often a biometric step that takes time. For a short visit, an eSIM installs from a QR code before you fly, activates on first Bangladeshi tower contact, and skips the arrivals process entirely.
Most travellers into Bangladesh fit one of three shapes: business visitors to Dhaka for the garment, textile, or NGO sectors, leisure travellers heading to Cox's Bazar, Sylhet, or the Sundarbans, and diaspora returning home to family across multiple districts. All three want data from the gate onward.
What Grameenphone and Robi coverage actually looks like
Dhaka has strong 4G across Gulshan, Banani, Dhanmondi, Uttara, and Motijheel. Grameenphone and Robi both perform well in the capital; differences are marginal in the central districts. Old Dhaka's densely-packed lanes can thin slightly but rarely drop signal entirely. Chittagong and Sylhet have similar coverage in the main commercial areas.
Cox's Bazar town and the main beach strip have solid 4G. The drive south toward Teknaf stays covered along the main highway. Saint Martin's Island has lighter 4G coverage concentrated near Jetty Ghat and the main settlements. The Sundarbans have patchy coverage; once you're in the mangrove channels, expect extended signal drops.
Rural areas vary significantly. Main highways between the divisional capitals stay covered. Rural char-lands (river islands), some hill-tract areas in Bandarban and Rangamati, and deep rural subdistricts can drop to 3G or lose signal. For any travel outside the main cities, download offline maps and plan for gaps.
Grameenphone has the widest national footprint and is the default routing choice for most travel eSIMs.
How the major eSIM providers compare in Bangladesh
Pricing models vary across providers. Custom plans, where you set data amount and validity independently rather than picking from preset bundles, are 99esim's distinguishing feature and the only option in the tracked set for that level of flexibility. Airalo sells fixed bundles with the widest country list in the category. Holafly sells unlimited-day windows. Nomad covers Bangladesh on a fixed-bundle model. Ubigi does not sell a dedicated Bangladesh country plan; travellers on Ubigi use its Asia regional or World plan instead.
Bangladeshi pricing sits in the South Asian normal band across every tracked provider that offers a country plan. Holafly's per-day unlimited model works for a heavy-data business visit where metered data is a distraction. Per-GB economics on fixed-bundle providers are competitive in this market. The matrix below spells out the per-axis shape for Bangladesh specifically.
Install timing: when to set it up
Install the eSIM the night before you fly, or during a Doha, Dubai, or Kolkata layover. The QR code generates immediately after payment; scan it with your phone's eSIM settings; the profile installs but doesn't activate until it first sees a Bangladeshi tower. At the gate, switch your home SIM's data off and land at Hazrat Shahjalal with data already working.
iOS 17.4+ devices can install directly from a provider's app without scanning a QR code, on providers that support it. Android users still scan a QR code, which takes thirty seconds.
Who should pick what
A three- to five-day Dhaka business trip works on a 3 to 5 GB plan across any of the tracked providers that sell country-specific Bangladesh. Custom-plan providers let you size precisely.
A longer consulting or NGO assignment of two to four weeks benefits from a 10 to 20 GB plan. Navigation, traffic apps, messaging, and frequent document transfers add up faster than a pure-tourism trip. Custom plans on 99esim let you spec to the exact assignment length.
A Cox's Bazar or Sylhet leisure trip works on a 3 to 5 GB plan; add more if you're uploading photos frequently or taking the ferry to Saint Martin's.
A heavy streamer or business traveller who wants to video-call from Dhaka hotels without metered data fits Holafly's unlimited-day model better than per-GB providers.
A short two- or three-day layover or trade-show visit can work on any provider's smallest tier.
A group of three or more travelling together benefits from 99esim's group eSIM, which covers up to four devices on one purchase. None of the tracked competitors offer that product today.
A note on load-shedding and backup power
Bangladesh's electricity supply has improved significantly over the past decade, but load-shedding still happens, especially in summer peak-demand periods. Hotel Wi-Fi depends on the hotel's generator and router running continuously; during extended outages the router resets and may not reconnect cleanly. Cell towers run on backup power for longer and usually stay up through most load-shedding events. A 4G eSIM on Grameenphone is often a more reliable data source than hotel Wi-Fi during outage periods. Keep a small USB battery pack for your phone; it matters more than you'd think.