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All-black aluminium smartwatch with silicone sport strap and TFT touchscreen

allentian

allentian K28h Smart Watch 28 155 2021

SKU CH-W7EX-GBM65

Bluetooth calling smartwatch with heart-rate, blood-pressure and blood-oxygen monitoring plus sleep and step tracking

  • ColorAllBlack
  • SizeMedium
  • CompatibilityAndroid / IOS
  • Sports TeamNO
  • Bluetooth calling keeps you hands-free on the go
  • Heart-rate, blood-pressure and SpO2 sensors track key health metrics
  • Step counting and sleep monitoring give daily activity insight
  • Touch-plus-button control on a TFT screen simplifies operation
  • Silicone sport strap and aluminium-alloy case suit active wear

All-Day Health Companion

The allentian K28h is a 2021 smartwatch built for daily wellness tracking and smartphone connectivity. It monitors heart rate, blood pressure, blood oxygen and sleep patterns while delivering call and notification alerts directly to the wrist. A TFT touchscreen and side button provide control, and the aluminium alloy case with silicone sport strap suits active routines.

Casual Users Over Data Athletes

This watch suits wearers who want core health metrics and Bluetooth calling without a complex ecosystem. It is not for athletes who require built-in GPS, on-device music storage or advanced training analytics. Buyers needing medical-grade accuracy, third-party app support or automatic workout detection should look at dedicated sports platforms instead.

Steady Week-Long Operation

Under continuous use the battery lasts less than seven days before requiring a recharge via the included cable. Life-waterproof sealing handles sweat, rain and hand-washing but is not rated for swimming or submersion. Heart-rate and SpO2 sampling runs in the background without noticeable lag, and the Bluetooth link remains stable within the stated five-metre range during prolonged sessions.

Highlights

  • Bluetooth calling keeps you hands-free on the go
  • Heart-rate, blood-pressure and SpO2 sensors track key health metrics
  • Step counting and sleep monitoring give daily activity insight
  • Touch-plus-button control on a TFT screen simplifies operation
  • Silicone sport strap and aluminium-alloy case suit active wear

Specifications

ColorAllBlack
SizeMedium
CompatibilityAndroid / IOS
Sports TeamNO

Questions about this item

Does the K28h need a phone running Android or iOS to make Bluetooth calls?

Yes, the watch pairs with Android or iOS handsets and uses the phone's connection for its Bluetooth calling feature.

If I keep an older phone that only supports basic Bluetooth, will the K28h still deliver call audio and notifications?

The watch works with any handset that can maintain a Bluetooth link within 5 metres, so older phones that support standard Bluetooth pairing will still handle calls and alerts.

After pairing, how can I confirm the heart-rate and blood-oxygen sensors are actually recording data?

Open the companion app on your phone; live heart-rate, blood-oxygen and step readings appear on the dashboard when the sensors are working correctly.

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