How Belgium scored
Our Belgium assessment evaluated 5 eSIM providers across 3 carrier networks. Proximus handles 5G routing for all providers in this market. We compared 7 plans ranging from $2.21 to $14.76. Proximus publishes 5G in Belgium, which is the tier the network score reads.
Belgium's 3 networks give providers real carrier options: Proximus, Orange BE, and Base/Telenet. Proximus is the primary routing partner for all five providers, on published coverage breadth.
The pricing ladder spans from 1GB at $2.21 ($2.21/GB) to 20GB at $14.76 ($0.74/GB). Best per-GB value sits at 20GB for $14.76 ($0.74/GB), our recommended tier for most Belgium travelers. Holafly adds an unlimited daily option from $2.99/day, which suits heavy data users on trips of 5+ days. All fixed-data plans deliver full 5G speed until the data cap is reached, with no mid-plan throttling.
Proximus's 5G coverage spans Belgium's main population centers and tourist corridors. Rural coverage depends on Proximus's tower density in less populated areas.
Our editorial verdict places HelloRoam first for Belgium (9.5/10), followed by Airalo (9.3/10). These scores reflect Belgium-specific conditions: Proximus routing, 7 available plans, and 5G as the network standard. Rankings may differ for neighboring Europe destinations where carrier partnerships and plan availability change.
What the rubric scores
The rubric ranked 7 eSIM plans from 5 providers for Belgium on five dimensions: Coverage (25%), Pricing (25%), Network tier (20%), App features (15%), Support access (15%). Each provider takes a 1-5 mark per dimension, and the weighted total is doubled to give the /10 display score.
Where the inputs come from
Scores for Belgium use the published weighted formula: Coverage (25%), Pricing (25%), Network tier (20%), App features (15%), and Support access (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 Belgium: Unlimited plan availability in Belgium 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 Belgium 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 the full scoring rubric.
BesteSIM runs no speed tests and publishes no throughput figure for Belgium. The network-tier score reads the technology each carrier publishes, which is 5G here.
Belgium Network Landscape
Belgium has 3 mobile networks: Proximus (5G), Orange (4G), Base (4G). Proximus delivers the strongest coverage combination. All 5 providers route through these carriers.
Carrier Partnerships
Belgium operates 3 mobile networks: Proximus (5G), Orange (4G), Base (4G). Proximus serves as the primary routing partner for travel eSIMs in this market. All five ranked providers maintain routing agreements with Proximus. Some providers additionally route through Orange as a fallback when Proximus's signal weakens.
Proximus publishes 5G across Belgium, and every ranked provider attaches to it rather than to a network of its own. With 3 networks accepting eSIM roaming, Belgium offers strong carrier diversity. Signal handoffs between Proximus, Orange, and Base keep connections stable across geographic boundaries.
All five providers converge on Proximus for Belgium. The routing uniformity means the network and coverage scores reflect Proximus's published footprint rather than provider-specific agreements. The differentiators shift to app features, support languages, refund terms and plan pricing.
Review Timeline
Plans and pricing for Belgium were last verified in May 2026. All 7 plans confirmed active on Proximus's 5G network. Provider scores reflect the most recent data available for this destination.
We review Belgium rankings quarterly and after any major network change (carrier merger, 5G rollout, new provider entry). Price updates are checked monthly. If Proximus launches a new network tier or a provider adjusts Belgium plan pricing, scores are recalculated within 2 weeks.