Savings Calculator
Calculate Your eSIM Savings for Brunei (2026)
AT&T charges $10/day in Brunei. Verizon charges the same. Over 10 days, that bill reaches $100. A travel eSIM on DST's 4G LTE network costs $75 — 25% less. Here is the full breakdown.
Your carrier's roaming rate in Brunei
| 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 pays DST for roaming access in Brunei and charges you $10/day. A travel eSIM bypasses that arrangement at $3.75/GB on the same DST towers.
Verizon TravelPass
Two weeks of Verizon roaming in Brunei totals $140 at $10/day through DST. Most eSIM providers offer 14-day plans for the same destination at $10-$25 total.
T-Mobile Magenta (high-speed add-on)
T-Mobile does not publish a per-day data ceiling for its $15 Brunei pass. In practice, speed throttling has been reported on sustained high-bandwidth use. An eSIM at $3.75/GB specifies a defined GB limit with no undisclosed throttle.
eSIM alternative cost for Brunei
Plan tiers for Brunei
| Tier | Price | Per GB |
|---|---|---|
| 1GB | $8.28 | $8.28 |
| 3GB | $20.52 | $6.84 |
| 10GB | $57.90 | $5.79 |
| 20GBBest fit | $75 | $3.75 |
Unlimited daily option
| Days | Price | Per Day | Discount |
|---|---|---|---|
| 1 days | $13.74 | $13.74 | 4% |
| 3 days | $39.50 | $13.17 | 8% |
| 7 days | $92.16 | $13.17 | 8% |
| 14 days | $178.30 | $12.74 | 11% |
| 30 days | $352.03 | $11.73 | 18% |
Which provider covers Brunei
The primary provider for Brunei is Airalo, connecting to DST's 4G LTE network. Compare all eSIM providers
Savings breakdown
| Trip Length | AT&T | Verizon | T-Mobile HS | eSIM | You Save |
|---|---|---|---|---|---|
| 3 days | $30 | $30 | $45 | $57.90 | $-27.90 (-93%) |
| 7 days | $70 | $70 | $105 | $75 | $-5 (-7%) |
| 14 days | $140 | $140 | $210 | $75 | $65 (46%) |
| 21 days | $210 | $210 | $315 | $75 | $135 (64%) |
| 30 days | $300 | $300 | $450 | $75 | $225 (75%) |
Family and group savings
Carrier roaming charges multiply per person. eSIM savings multiply even faster for groups.
Solo traveler
Carrier: $100
eSIM: $75
Save $25
Couple
Carrier: $200
eSIM: $150
Save $50
Family of 4
Carrier: $400
eSIM: $300
Save $100
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
Real savings scenarios for Brunei
Solo traveler
Verizon TravelPass for 10 days in Brunei: $100. That is $10 per calendar day, triggered by any network contact, including a background email sync at midnight. A 20GB eSIM on DST costs $75 and does not bill per day. Savings: $25 (25%). Same 4G LTE network.
Family trip
A family of four on AT&T visiting Brunei for 10 days: 4 lines x $10/day x 10 days = $400. Four individual 20GB eSIMs on DST: $300. Family savings: $100. Alternative: two eSIMs with tethering for two devices each costs $150 total. That cuts the family data bill to 38% of AT&T roaming.
Business trip
Verizon TravelPass for a 5-day business trip to Brunei: $10/day x 5 = $50 per traveler. TravelPass shares data with your domestic plan cap. A business traveler who already used 8 GB of a 15 GB plan before departure has only 7 GB left for the 5-day trip. A 20GB eSIM at $75 provides a separate data bucket that does not affect your home plan. Savings: $0 per person.
Long-stay and digital nomads
Digital nomads spending 30 days in Brunei on AT&T roaming: $10/day x 30 = $300. Verizon: $300. T-Mobile high-speed: $450. An unlimited daily eSIM at $14.31/day for 30 days: $429.30. For 30-day stays, purchasing two eSIM plans or one unlimited plan costs less than a single week of carrier roaming.
Frequent traveler annual savings
Five-year roaming projection for Brunei (2 trips/year): AT&T total: $1000 ($10/day x 10 days x 2 trips x 5 years). eSIM total: $750 ($75 x 2 trips x 5 years). Five-year savings: $250. Both options use DST's towers the entire time.
Extended stay economics
Digital nomads spending a month in Brunei face the steepest roaming bills. AT&T: $10/day x 30 = $300. T-Mobile high-speed: $450. A 20GB eSIM on DST: $225. Monthly savings vs AT&T: $75 (25%). At 2 GB/day of working data (video calls, file uploads, cloud sync), the eSIM handles 60 GB over a month. AT&T's Day Pass uses your domestic data cap for the same 60 GB and still bills $300 on top. Brunei also has unlimited daily eSIM plans at $14.31/day, which totals $429.30 for 30 days of unrestricted data.
Frequent flyer savings
Business travelers averaging 4 international trips per year: 4 trips to Brunei at 10 days each = 40 days of roaming. AT&T: $400/year. Four eSIMs: $300/year. Annual savings: $100 per employee. A company with 10 traveling employees saves $1000/year.
Data usage savings
A traveler using Google Maps 3 hours/day in Brunei consumes 24 MB/day in navigation data. Over 10 days: 240 MB (0.2 GB). AT&T charges $10/day regardless of how little data you use. An eSIM at $3.75/GB on DST charges $0.90 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 Brunei: one 20GB eSIM at $75, shared via hotspot. The second phone connects through the first phone's WiFi hotspot. Total cost: $75 for both devices over 10 days. Compare: AT&T charges $200 for two lines ($10/day each). Savings: $125. Trade-off: the second phone needs to stay within WiFi hotspot range of the first.
UK carrier comparison
Vodafone Roaming Passport charges GBP6/day in Brunei. Over 10 days: GBP60 (approximately $76 USD at current exchange rates). A 20GB eSIM on DST: $75 (USD). Savings in USD terms: roughly $-15. Both options connect to DST's 4G LTE towers in Brunei.
Our verdict
Against AT&T: $25 saved (25%). Against Verizon: $25 saved. Against T-Mobile high-speed: $75 saved. Against T-Mobile free tier: $0 carrier cost but 256 Kbps speed renders maps, ride-hailing, and video calls unusable. A 20GB eSIM at $75 delivers full 4G LTE on DST for less than any paid roaming option.
How much can I save with eSIM in Brunei?
eSIM savings in Brunei for a 10-day trip: $25 vs AT&T ($10/day), $25 vs Verizon ($10/day), $75 vs T-Mobile high-speed ($15/day). eSIM price: $75 on DST. Verified May 2026.
How much does roaming cost in Brunei?
Roaming in Brunei costs $10/day on AT&T ($100 for 10 days), $10/day on Verizon ($100), and $15/day on T-Mobile for high-speed data ($150). A travel eSIM on DST costs $75 for 20GB. Rates verified May 2026.
Brunei network context
Local networks
Brunei has 1 mobile network. The primary carriers are DST, Progresif.
Connectivity notes
VPN usage is restricted in Brunei. Check local regulations before using a VPN.
- Internet content filtered
- DST is dominant carrier
Good to know
In Brunei, dial 993/995/991 for emergency services. Calling 112 may not connect on all networks. This number works on any active SIM or eSIM, including plans with exhausted data balances.
Good to know
VPN access in Brunei is restricted. Saily includes built-in VPN from the NordVPN team.
Frequently asked questions
- How much does AT&T roaming cost for 10 days in Brunei?
- AT&T International Day Pass charges $10/day in Brunei. A 10-day trip costs $100 in roaming charges. This activates automatically when your phone connects to a local network abroad.
- Is a travel eSIM cheaper than Verizon TravelPass in Brunei?
- Verizon TravelPass charges $10/day in Brunei. A 10-day trip costs $100. A 20GB eSIM covers the same trip for $75 on the same local network — saving you 25%.
- How much data do I need for a week in Brunei?
- 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 Brunei?
- 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 Brunei?
- T-Mobile Magenta includes free data in Brunei, 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 Brunei?
- A 30-day eSIM for Brunei 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.
- How much does carrier roaming cost in Brunei?
- For a 14-day trip: AT&T roaming costs $140 ($10/day x 14). Verizon: $140. T-Mobile high-speed: $210. A travel eSIM on DST for the same 14 days starts at $8.28 for 1GB — plans are priced per GB or as a fixed data bucket, not per day, so the cost stays flat.
- Is T-Mobile's free international data fast enough in Brunei?
- No. T-Mobile's free international data is throttled to 256 Kbps in Brunei. To get usable speed, you pay $15/day — the same as AT&T and Verizon. For a 7-day trip that is $105 from T-Mobile, $70 from AT&T. A travel eSIM on DST at $3.75/GB for a typical 7-day trip at 1.5 GB/day costs $39.38. Difference: $65.63.
- How is my roaming bill calculated in Brunei?
- AT&T bills $10 per calendar day your phone touches a Brunei tower. Verizon matches that rate. Without a pass, each megabyte costs $2.05 — making 1 GB of accidental usage cost $2,099. T-Mobile includes free data at unusable 256 Kbps speeds. A travel eSIM sidesteps all three billing models: pay 1GB for $8.28 once, use it until the data runs out, and face zero overage risk.
- How much does 1 GB of roaming data cost in Brunei?
- On AT&T without a plan: roughly $2,050 (at $2.05/MB). With AT&T International Day Pass: $10/day — you get access to your home plan's data allowance, but the day fee applies regardless of usage. With a travel eSIM: $3.75 per GB on DST's 4G LTE network. The eSIM is the only option where you pay strictly for what you use at a predictable, low per-GB cost.
- Can I use video calls on a travel eSIM in Brunei?
- Yes. FaceTime, WhatsApp Video, and Zoom all work on a travel eSIM — they require 2 Mbps minimum, and DST's 4G LTE network in Brunei comfortably exceeds that. With carrier roaming at $10/day you get the same quality. The eSIM at $3.75/GB delivers identical performance at a fraction of the roaming cost. T-Mobile's free 256 Kbps tier cannot support video calls.