Yesim is the unlimited data specialist. Saily is the privacy-first choice. Both are legitimate travel eSIM providers, but they take meaningfully different approaches. This guide breaks down exactly where each one wins — and where it doesn't.
Quick comparison
| Yesim | Saily | |
|---|---|---|
| Countries | 200+ | 150+ |
| Data type | Unlimited + Prepaid | Capped (1–20 GB) |
| Unlimited option | Yes (fair use ~70 GB/mo) | Yes (3 GB/day cap) |
| Cheapest plan | ~$1.50 / 1 GB | $3.49 / 1 GB |
| Hotspot | ✓ All plans | ✓ All plans |
| Privacy features | VPN (iOS only) | Ad & tracker blocking |
| App quality | Good | Good |
| Best for | Heavy data users, digital nomads, remote workers | Privacy-conscious travelers, budget light users |
Where Yesim wins
Yesim's key advantage is unlimited data plans — no counting megabytes, no data anxiety. Their SwitchLess network technology connects to 800+ operators worldwide. For digital nomads and heavy users, Yesim offers the best value at higher data tiers. The Swiss company also provides a built-in VPN for iOS users.
Read full Yesim review → Get Yesim →
Where Saily wins
Built by NordVPN's team, Saily is the only eSIM provider with network-level ad blocking and web protection included in every plan. This is a genuine differentiator, not marketing fluff — it blocks trackers and ads across all apps, not just the browser. Saily also has the cheapest entry plan at $3.49 for 1 GB.
Read full Saily review → Get Saily →
Where each falls short
Yesim: Yesim dropped most of their budget plans in late 2025, so they're no longer competitive for light users. The unlimited plans have an undisclosed fair usage cap (~70 GB/month). The VPN feature is iOS-only, and the app, while functional, isn't as polished as Airalo's.
Saily: Saily covers fewer countries (150+) compared to Airalo's 200+. As a newer entrant, there are fewer user reviews and less of a track record. Plans have a 30-day activation window, so you can't buy too far in advance. No true unlimited option for heavy users.
The verdict: Yesim or Saily?
Choose Yesim if you value heavy data users, digital nomads, remote workers. Choose Saily if you value privacy-conscious travelers, budget light users. Neither is universally better — the right choice depends entirely on your travel style and data needs.
For a more comprehensive overview of all four providers, see our Best eSIM for Travel 2026 comparison.
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