We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Square black smartwatch with plastic strap, 28 mm case, 126 g

allentian

allentian C20 Smart Watch Black 28 mm 126 g

SKU CH-6D7W-PKK7P

Tracks steps, heart rate, sleep and notifications with a 28 mm touch screen and up to seven-day battery life

  • SizeMedium
  • Product colorBlack
  • Compatible withAndroid / IOS
  • Health insights via heart rate, blood pressure and sleep monitoring
  • Stay connected with instant smart reminders on your wrist
  • Track daily activity using step counting and multi-movement modes
  • Up to 7 days endurance with convenient magnetic charging
  • Lightweight 126 g square dial with classic buckle strap

Essential daily tracker

The allentian C20 is a lightweight smart watch built for everyday health awareness. It weighs 126 g and fits wrists with a 28 mm case diameter. The square TFT screen responds to touch-button input. It pairs with Android and iOS devices for call, message and app alerts.

Upgrade from basic bands

This model adds continuous heart-rate tracking, blood-pressure estimates and sleep-stage logging that simple step counters lack. The magnetic charging cable restores up to seven days of typical use in one session. The jump is worthwhile when you want overnight wellness data without wearing a bulky device.

Suits casual wellness users

The plastic classic-buckle strap and life-waterproof rating handle sweat, rain and hand-washing but not swimming or diving. Buyers who need built-in GPS, onboard music storage or third-party app ecosystems should look at more advanced platforms. The Europe version ships with a host, manual, charging cable and box.

How it compares

Measured against everything we stock in Smartwatches & Wearables, at today’s prices. Recalculated every night.

Price $81.99
Pricier than about 79% of the 2,527 comparable items (median $44.99).

Specifications

Product
Product colorBlack
Size & build
SizeMedium
Compatibility
Compatible withAndroid / IOS
More details
Team affiliationNO

Questions about this item

What wrist size does the 28 mm case with classic buckle strap fit?

The 28 mm square case uses a classic buckle on a plastic wristband; the buckle lets you adjust the strap to your wrist circumference.

How do I charge the watch and what mistake should I avoid?

Snap the magnetic charging cable onto the back of the watch; the common error is forcing the connector instead of letting the magnets align it.

When will the 126 g watch need a new battery or strap?

The rechargeable battery lasts up to 7 days per charge and can be recharged hundreds of times; replace the plastic strap if it cracks or the buckle wears out.

More in Smartwatches & Wearables

Similar items