🚚 Free UK delivery on every order · 30-day returns · UK customer support · Secure checkout
Best Bluetooth Calling Smartwatches Under £50 (UK Guide)
Quick answer: A Bluetooth calling smartwatch has a built-in microphone and speaker, so you can answer and make phone calls from your wrist while your phone is nearby. You can get one with an AMOLED screen, IP67 or IP68 water resistance and around a week of battery for under £50. It uses your phone’s connection, so it does not need its own SIM.
At a glance
- How calls work: the watch connects to your phone over Bluetooth and acts like a speakerphone on your wrist.
- Range: keep your phone within about 10 metres, for example in a pocket, bag or the next room.
- Works with: iPhone and Android, through a free app.
- On IZORRA: calling smartwatches from under £35, with free tracked UK delivery.
What does Bluetooth calling mean on a smartwatch?
Many cheap smartwatches only show a call alert. A calling smartwatch goes further: you can tap to answer, talk through the watch, dial from a keypad, and open recent calls or saved contacts. It is ideal when your phone is in a bag, charging in another room, or while you are cooking, driving with a phone holder, or carrying shopping.
It is different from a 4G or eSIM smartwatch, which has its own mobile connection and costs much more. Under £50, calling watches use your phone’s line.
What to look for
Screen: AMOLED or IPS?
AMOLED screens show deeper blacks and are easier to read outdoors, and often support always-on watch faces. IPS (TFT) screens are cheaper and still clear indoors. For the best screen under £50, look at the Zeblaze TS 4 (1.94-inch AMOLED, up to 1000 nits, Gorilla Glass).
Battery life
Calls use more power. Typical real-world battery is 5 to 7 days with some calls, and longer in power-saving mode. The QS16 Pro lists 7 to 10 days.
Water resistance
IP67 handles rain, sweat and hand washing. IP68 adds better protection against dust and water. Neither is designed for hot showers, saunas or diving.
App and phone compatibility
Each watch pairs with a free app (for example FitCloudPro, GloryFit or H Band) to sync steps, sleep and notifications. Check our smartwatch compatibility guide if you are unsure.
Health tracking
Most watches track steps, sleep, heart rate and blood oxygen (SpO2). These readings are estimates for general wellness and are not medical devices.
Calling smartwatches under £50 on IZORRA
| Watch | Screen | Battery | Water rating | Bluetooth | Stand-out feature |
|---|---|---|---|---|---|
| Zeblaze TS 4 | 1.94″ AMOLED | Up to 7 days (14 saver) | IP68 | 5.3 | Gorilla Glass, 1000-nit screen |
| Zeblaze GS 3 Pro | 1.97″ AMOLED, always-on | 260 mAh | IP68 | 5.2 | Largest screen |
| U17 | 1.85″ curved AMOLED | About 7 days | IP68 | 5.0 | Only 6.9 mm thin |
| R6 | 1.32″ round | 8–12 days standby | IP67 | 5.0 | Earbuds stored inside the watch |
| HD X2 Mini | 1.32″ AMOLED | 5–6 days | IP68 | 6.0 | Small, for slimmer wrists |
| QS13 | 1.83″ TFT | 5–7 days | IP67 | 5.2 | Aluminium case, 100+ sports |
| QS16 Pro | 1.83″ IPS | 7–10 days | IP67 | 5.0 | Lightest at 37 g |
Our picks
Best overall: Zeblaze TS 4
The brightest, toughest screen in this list, clear calls, 100+ sports modes and up to a week of battery. See the TS 4.
Best big screen: Zeblaze GS 3 Pro
A large 1.97-inch AMOLED with always-on mode for easy reading at a glance. See the GS 3 Pro.
Most unusual: R6 smartwatch with built-in earbuds
Flip open the watch face to find a pair of wireless earbuds charging inside, so you always have them for private calls. See the R6.
Best for smaller wrists: HD X2 Mini
A compact 1.32-inch AMOLED with Bluetooth calling and IP68. See the HD X2 Mini.
Best budget calling watch: QS16 Pro
Light, simple and long-lasting with Bluetooth calls. See the QS16 Pro.
Want calls in private without holding your wrist up? Pair any of these with open-ear earbuds. Charge watch, phone and earbuds together on a 3-in-1 charger (check the watch pad suits your watch, as many are made for Apple Watch).
See every model in smartwatches, or start with our smartwatch buying guide.
Frequently asked questions
Can I make calls on a smartwatch without my phone?
Not with these models. Bluetooth calling watches use your phone’s connection, so the phone needs to be within about 10 metres.
Do Bluetooth calling smartwatches work with iPhone?
Yes. They pair with iPhone and Android through a free app. Some iPhone features, such as replying to messages, may be limited compared with an Apple Watch.
Do I need a SIM card for a calling smartwatch?
No. The watches here have no SIM and use your phone’s mobile line over Bluetooth.
How good is call quality on a cheap smartwatch?
Fine for short calls in normal surroundings. In wind or traffic, use earbuds or take the call on your phone.
Are smartwatch heart rate readings accurate?
They are useful estimates for general wellness and trends. They are not medical devices and should not be used to diagnose or treat any condition.
Can I swim with an IP68 smartwatch?
IP68 protects against rain, sweat and brief immersion. Avoid hot water, saunas and pressing buttons under water, and check each watch’s guidance before swimming.