Our Testing in Bulgaria
Our Bulgaria assessment evaluated 5 eSIM providers across 3 carrier networks. A1 Bulgaria handles 4G LTE routing for all providers in this market. We compared 7 plans ranging from $2.21 to $8.06. Speed data indicates 132 Mbps average download.
Bulgaria's 3 networks give providers strong carrier options. A1 Bulgaria emerged as the primary routing partner for all five providers based on coverage breadth and speed consistency.
The pricing ladder spans from 1GB at $2.21 ($2.21/GB) to 20GB at $17.03 ($0.85/GB). Best per-GB value sits at 10GB for $8.06 ($0.81/GB), our recommended tier for most Bulgaria travelers. Holafly adds an unlimited daily option at $2.62/day, which suits heavy data users on trips of 5+ days. All fixed-data plans deliver full 4G LTE speed until the data cap is reached, with no mid-plan throttling.
A1 Bulgaria's 4G LTE coverage spans Bulgaria's main population centers and tourist corridors. Rural coverage depends on A1 Bulgaria's tower density in less populated areas.
Our editorial verdict places HelloRoam first for Bulgaria (9.5/10), followed by Airalo (9.3/10). These scores reflect Bulgaria-specific conditions: A1 Bulgaria routing, 7 available plans, and 4G LTE as the network standard. Rankings may differ for neighboring Europe destinations where carrier partnerships and plan availability change.
What We Tested
We ranked 7 eSIM plans from 5 providers for Bulgaria across five dimensions: Coverage (25%), Pricing (25%), Speed (20%), App Quality (15%), Support (15%). Each provider was scored 1-5 per dimension with a weighted total converted to a /10 display score.
How We Scored
Scores for Bulgaria use our standard weighted formula: Coverage (25%), Pricing (25%), Speed (20%), App quality (15%), and Support (15%). Each dimension receives a raw score from 1 to 5. The composite multiplies by 2 for a 0-10 display scale. Coverage and Pricing carry equal top weight because for travel eSIMs, network reach and cost matter most.
Country-specific adjustments for Bulgaria: Unlimited plan availability in Bulgaria adjusts the Pricing dimension to weight per-day unlimited rates alongside per-GB fixed rates. These calibrations keep scores comparable across the 185+ destinations in our database.
The scoring spread across 5 providers for Bulgaria is 1.5 points (HelloRoam at 9.5/10 down to Nomad at 8.0/10). A spread under 1.5 points indicates that all providers deliver comparable service for this destination. The wider gap here reflects meaningful differences in pricing, coverage, or support quality.
Read our full testing methodology.
We measured download speeds at 132Mbps average across test sessions on A1 Bulgaria.
Bulgaria Network Landscape
Bulgaria has 3 mobile networks: A1 (4G), Vivacom (4G), Telenor (4G). A1 Bulgaria delivers the strongest coverage combination. All 5 providers route through these carriers.
Carrier Partnerships
Bulgaria operates 3 mobile networks: A1 (4G), Vivacom (4G), Telenor (4G). A1 Bulgaria serves as the primary routing partner for travel eSIMs in this market. All five ranked providers maintain routing agreements with A1 Bulgaria. Some providers additionally route through Vivacom as a fallback when A1 Bulgaria's signal weakens.
A1 Bulgaria delivers 132 Mbps average download in Bulgaria. This places the carrier above the global travel eSIM median for download speed. With 3 networks accepting eSIM roaming, Bulgaria offers strong carrier diversity. Signal handoffs between A1, Vivacom, and Telenor keep connections stable across geographic boundaries.
All five providers converge on A1 Bulgaria for Bulgaria. The routing uniformity means speed and coverage scores reflect A1 Bulgaria's infrastructure quality rather than provider-specific carrier agreements. The differentiators shift to app quality, support responsiveness, and plan pricing.
Review Timeline
Plans and pricing for Bulgaria were last verified in May 2026. All 7 plans confirmed active on A1 Bulgaria's 4G LTE network. Provider scores reflect the most recent data available for this destination.
We review Bulgaria rankings quarterly and after any major network change (carrier merger, 5G rollout, new provider entry). Price updates are checked monthly. If A1 Bulgaria launches a new network tier or a provider adjusts Bulgaria plan pricing, scores are recalculated within 2 weeks.