TL;DR: Skip the KESHUYOU smartwatch at $8.64 - while surprisingly decent build quality for the price, it's still a basic budget device.
What are the technical specs?
| Feature | Details |
|---|---|
| Price | $8.64 (50% off $17.28) |
| Bluetooth Calling | Yes |
| Heart Rate Monitor | 24-hour continuous |
| SpO2 (Blood Oxygen) | Yes |
| Blood Pressure | Yes (reference only) |
| Sleep Tracking | Yes (deep/light phases) |
| Water Resistance | Splash-proof |
| Battery Life | 3~4 days typical |
| Charge Time | ~2 hours |
| Compatibility | Android & iOS |
| Units Sold | 14,000+ |
| Satisfaction Rate | 98% |
Can a $9 Smart Watch Actually Be Good?
In a world where the Apple Watch Ultra costs $800 and even the Galaxy Watch FE runs around $200, the idea of a functional smart watch for under $10 sounds like a joke. But here we are. I picked up the KESHUYOU 2025 Smart Watch on AliExpress for $8.64 — that's 50% off the original $17.28 price — and I've been wearing it daily for two weeks now.
With over 14,000 units sold and a 98% satisfaction rating, I figured it was worth a shot. Spoiler: I was genuinely surprised.
What's included in the box?
Shipping took about 12 days to South Korea, which is pretty standard for AliExpress. The packaging was surprisingly neat — nothing fancy, but well-protected. Inside the box you get the watch itself, a magnetic charging cable, and a bilingual manual.
The first thing that struck me was the build quality. No, it doesn't feel like an Apple Watch. But it doesn't feel like a $9 product either. The case has a clean design, and the silicone band is soft and comfortable. Honestly, from arm's length, most people wouldn't guess this was a budget watch.
How good is the screen quality?
The screen is brighter and sharper than I expected at this price point. It's perfectly readable outdoors in daylight, which was my biggest concern going in. You can choose from multiple watch faces through the companion app, and some of them actually look quite sleek.
Touch responsiveness is decent — not buttery smooth like a flagship, but there's no frustrating lag. Swiping through menus feels natural enough for daily use.
Does it track health accurately?
This is where the KESHUYOU packs a surprising punch for its price. You get:
- Heart rate monitoring — continuous 24-hour tracking
- Blood oxygen (SpO2) — on-demand measurement
- Blood pressure monitoring — reference-level readings
- Sleep tracking — deep and light sleep breakdown
I compared the heart rate readings against my dedicated pulse oximeter over several days. The watch was consistently within 3~5 BPM, which is honestly impressive for this price tier. SpO2 readings were about 2~3% off from my medical-grade device — not clinical accuracy, but useful for spotting trends.
The sleep tracking distinguishes between deep and light sleep phases. It's not as detailed as what you'd get from a Fitbit or Oura Ring, but it gives you a reasonable overview of your sleep patterns.
Can you make phone calls with it?
This was the feature that sold me. Bluetooth calling on a sub-$10 watch? I had to try it.
And you know what — it actually works. Pair it with your phone, and you can make and receive calls directly from the watch. In quiet environments, the call quality is genuinely usable. The speaker is small but clear, and the microphone picks up your voice well enough for casual conversations.
Where it falls short is noisy environments. The speaker just doesn't have enough volume to compete with background noise. But for answering a quick call while cooking or doing dishes? It's incredibly handy.
How long does the battery last?
Battery life varies depending on usage:
- Normal use (notifications, health tracking, occasional glances): 3~4 days
- Heavy use (frequent Bluetooth calls, constant health monitoring): 2~3 days
- Charging time: approximately 2 hours to full
That's reasonable for any smart watch, let alone one at this price. The magnetic charger snaps on easily, no fumbling with pins.
Is it waterproof or water resistant?
The watch handles basic water exposure — hand washing, rain, sweat during workouts. I wouldn't take it swimming or into the shower, though. Think of it as splash-proof rather than truly waterproof.
Pros and Cons
Pros
- Unbeatable price-to-feature ratio
- Bluetooth calling actually works well indoors
- Comprehensive health monitoring suite (HR, SpO2, BP, sleep)
- Clean design that doesn't scream "budget"
- Multiple watch faces available
- Works with both Android and iOS
Cons
- Health sensors are reference-grade, not medical-grade
- Call quality suffers in noisy environments
- No built-in GPS (relies on phone connection)
- Water resistance is basic — no swimming
- Companion app UI could be more polished
How does it compare to premium smartwatches?
Let's put the pricing in perspective:
- Apple Watch SE: ~$250 → roughly 30x the price
- Galaxy Watch FE: ~$200 → roughly 23x the price
- KESHUYOU: $8.64
The premium watches obviously offer GPS, NFC payments, better sensors, richer app ecosystems, and superior build quality. Nobody's arguing otherwise. But if your checklist is "tell time, get notifications, track basic health stats, and maybe take a call" — this $9 watch checks every box.
Who is this smartwatch best for?
- Smart watch newcomers who want to try the experience without committing hundreds of dollars
- Casual fitness users who want approximate heart rate and step tracking
- Busy cooks and parents who need hands-free calling at home
- Gift shoppers looking for a surprisingly impressive budget present
- People who lose things — at $9, it's practically disposable
Who shouldn't buy this smartwatch?
- Serious athletes who need GPS tracking and precise biometrics
- Health-conscious users who require medical-grade accuracy
- Mobile payment users who rely on NFC tap-to-pay
- App enthusiasts who want a rich third-party app ecosystem
Final Verdict
After two weeks of daily wear, I can confidently say the KESHUYOU smart watch dramatically over-delivers for its price. It's not going to replace an Apple Watch or Galaxy Watch for power users, but it was never meant to. What it does is make smart watch features accessible to literally everyone — and it does that remarkably well.
If you're curious about smart watches but don't want to drop serious money, this is the perfect entry point. Worst case, you're out less than a coffee.
Buy the KESHUYOU Smart Watch on AliExpress
Frequently Asked Questions
Q: Will Bluetooth devices from AliExpress work in Korea?
Yes, Bluetooth is a global standard. Devices with Bluetooth 5.0 or higher will work perfectly with Korean phones and computers.
Q: Is there a warranty on AliExpress electronics?
There's no official manufacturer warranty, but AliExpress Buyer Protection covers you for 60-90 days. Report any issues within 15 days of delivery.
Q: How can I avoid counterfeit products?
Stick to AliExpress Choice products and sellers with high ratings. For unbranded gadgets, counterfeits are rarely an issue. Read recent buyer reviews with photos.
What are similar alternative products?
- MagSafe Magnetic Metal Ring Review from AliExpress — Universal Phone Magnet Plate
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- AliExpress Mini Projector Review - Magcubic HY300 Pro Under $51 Honest Test
This post contains affiliate links. I may earn a small commission if you purchase through these links, at no extra cost to you. All opinions are based on my genuine experience with the product.
