Best eSIM for Hefei in 2026
— Ranked by Real Performance

Hefei sits on China Telecom and China Unicom's backbone infrastructure, benefiting from Anhui province's aggressive 5G rollout that reached 92% urban coverage by end-2023 — making it one of the better-connected tier-2 cities for international visitors. The city suits business travellers attending IFLYTEK or CEVT-related industry events, as well as researchers visiting USTC (University of Science and Technology of China), who need reliable data for VPN tunnelling and video conferencing. Critically, most international eSIM providers roaming into Hefei route through China Unicom's wholesale MVNO agreements rather than China Mobile, which matters because Unicom maintains stronger international peering ratios at its Shanghai-IX gateway — reducing latency on overseas-bound traffic that inevitably needs to exit China's national network.

• →China Unicom operates Hefei's densest 5G NR (New Radio) small-cell grid in the Binhu New District and High-Tech Zone, with peak downlink speeds recorded at 487 Mbps on Band n41 (2.6 GHz) — a figure not published by any consumer eSIM provider but observable via third-party drive-test datasets from Q3 2023.
• →Hefei Metro Lines 1–5 have active in-tunnel DAS (Distributed Antenna Systems) installed by China Telecom, meaning underground coverage on most eSIM plans is functional, though speeds typically drop to LTE Cat-4 levels (50–100 Mbps) inside tunnels.
• →VPN performance is the real bottleneck in Hefei: China's GFW (Great Firewall) actively throttles unrecognised VPN protocols at provincial egress points in Anhui, so raw LTE/5G speed is less relevant than your VPN provider's obfuscation capability.
• →International eSIM roaming in China legally requires the underlying carrier to hold a MIIT-approved roaming licence; most consumer eSIM providers achieve this via China Unicom's Global MVNE platform, which caps foreign roamer sessions at 100 Mbps regardless of the local 5G conditions.