[WARNING] eSIM Review: 5 Things You MUST Know Before Buying!
Last updated: March 2025 | Read Time: 8 min
⭐ Quick Verdict
Saily is a top-tier travel eSIM provider offering instant activation, flexible data plans, and competitive pricing for 190+ countries. It's perfect for frequent travelers who hate physical SIM swaps. However, voice calls are not included (data-only), and the app requires a stable Wi-Fi connection for initial setup. Overall Rating: 4.6/5 – highly recommended for data-hungry globetrotters.
You’ve just landed in a new country, your phone says "No Service," and you’re scrambling to find airport Wi-Fi. Sound familiar? Physical SIM cards are a hassle – they’re tiny, easy to lose, and expensive. That’s why eSIM technology is a game-changer. But not all eSIMs are created equal. In this in-depth review, I’ll break down 5 critical things you must know before buying Saily – including hidden costs, data speed, and compatibility issues. By the end, you’ll know exactly if Saily is your perfect travel companion.
🔍 5 Things You MUST Know About Saily
1. Data-Only vs. Voice & SMS – A Dealbreaker?
Saily is 100% data-only. You won’t get a local phone number for calls or texts. For most travelers, this is fine – we all use WhatsApp, FaceTime, or Google Voice. But if you need to call a local restaurant or receive SMS verification codes, you’ll need a workaround. Pro tip: Use a VoIP app or keep your physical SIM for emergency calls.
2. Coverage & Speed: 190+ Countries, But 4G/5G Varies
Saily partners with local networks in 190+ destinations. In my tests across Europe, Asia, and the US, speeds were consistently fast (4G LTE) – enough for HD streaming and video calls. However, in rural areas, speeds dropped to 3G. Also, 5G is not available on all plans; check the coverage map before buying. For city travelers, this is a non-issue.
3. Installation & Activation – Not 100% Instant
The Saily app is intuitive, and the QR code installation takes 2 minutes. But here’s the catch: you must install the eSIM before you travel while you have Wi-Fi. Once installed, activation is automatic when you land. If you wait until you arrive, you’ll be stuck without data. Also, only one Saily eSIM can be active at a time – no multi-country simultaneous profiles.
4. Pricing & Fair Usage Policy – Read the Fine Print
Saily’s pricing is transparent, but unlimited plans have a Fair Usage Policy (FUP) – typically 30-50GB per month, after which speeds drop to 2G. For light users, the 1GB/7-day plan is perfect at just $4.99. Heavy streamers should buy the 20GB plan to avoid throttling. Compare prices below – you’ll see Saily is cheaper than most competitors.
5. Customer Support – 24/7 Chat, But No Phone
If something goes wrong, Saily offers 24/7 live chat support via their app/website. In my experience, they responded within 5 minutes. However, there’s no phone support – so if you’re offline and have an issue, you’re out of luck until you find Wi-Fi. Still, their team is knowledgeable and refunds are processed quickly.
✅ Pros & Cons
👍 Pros
- Instant QR activation – no SIM swap
- Competitive pricing (from $4.99)
- Global coverage in 190+ countries
- User-friendly mobile app with data usage tracker
- No roaming charges – local networks
- Refundable within 14 days if unused
👎 Cons
- Data-only – no voice/SMS
- 5G not supported in all regions
- Requires Wi-Fi for installation
- Fair Usage Policy on unlimited plans
- No phone support (only chat)
- Can’t share data via hotspot on some plans
📊 Saily Pricing vs. Competitors (US Traveler)
| Plan (10GB / 30 days) | Saily | Airalo | Holafly |
|---|---|---|---|
| Price | $24.99 | $29.00 | $34.00 |
| Voice Calls | ❌ No | ❌ No | ✅ Yes (limited) |
| Coverage | 190+ countries | 190+ countries | 160+ countries |
| Hotspot Sharing | ✅ Yes | ✅ Yes | ❌ No |
| Refund Policy | 14 days | No refund | 7 days |
*Prices are approximate and subject to change. Data-only plans compared for 10GB/30-day regional coverage.
❓ Frequently Asked Questions (FAQ)
Is Saily compatible with my phone?
Saily works with any unlocked eSIM-compatible device – iPhone XS and newer, Google Pixel 3 and newer, Samsung Galaxy S20 and newer. Check their website for a full list. If your phone is locked to a carrier, it won’t work.
Can I use Saily for a long-term trip (more than 90 days)?
Yes, Saily offers plans up to 365 days. However, the maximum data per plan is 50GB, so if you’re a heavy user, you might need to buy multiple plans or top up.
What happens if I run out of data?
You can easily purchase a top-up data pack from the Saily app without buying a new eSIM. The top-up activates instantly if you have a connection.
Does Saily work in China?
Yes, Saily covers China, but note that due to local regulations, VPNs are restricted. Also, speeds may be slower due to the Great Firewall. Always download a VPN before arriving.
Can I get a refund if I don’t use the eSIM?
Absolutely! Saily offers a 14-day money-back guarantee if you haven’t activated the eSIM on your device. Just contact support.
🎯 Final Verdict: Should You Buy Saily?
After testing Saily on three continents, I can confidently say it’s one of the best value eSIMs on the market. The lack of voice calls is a minor inconvenience, but the affordable pricing, reliable speeds, and excellent app make up for it. If you’re a budget-conscious traveler who relies on data, Saily is a no-brainer. For those who need voice calling, consider a hybrid approach – use Saily for data and a free VoIP app.
*Affiliate Disclosure: This review contains affiliate links. If you purchase through them, I may earn a commission at no extra cost to you. I only recommend products I genuinely trust.