COLMI i28 Ultra Magnetic Strap Smart Watch

Category

Specification

Brand & Model

COLMI i28 Ultra

Display

1.43-inch AMOLED screen; resolution 466 × 466 px; Full-screen touch; Always-On Display (AOD)

Case / Body

Zinc alloy + ABS + PC build; durable body

Strap / Bands

Silicone strap + optional magnetic stainless/bamboo strap; strap width ~20 mm

Connectivity

Bluetooth 5.3; compatible with “COLMI Fit” app; works with Android 4.4+ and iOS 8.0+

CPU / Memory / Storage

Chipset: JL7013A6S; RAM ~640 KB; Storage (ROM) ~256 MB; Heart-rate sensor: VC30F

Battery

~260 mAh battery; typical usage: about 5-7 days; standby ~30 days; charging via 2-pin magnetic cable (~2 hours)

Water Resistance

IP68 — safe for splashes, sweat, rain, everyday waterproofing

Sensors & Health Tracking

Heart rate, SpO₂ (blood oxygen), sleep monitoring, cycle tracking for women, etc.

Features

Bluetooth calling; music & camera control; weather; alarm; timer; stopwatch; find phone; multiple watch faces; gestures & notifications; also features like stock trend, “Muslim prayer” reminders, voice assistant support

Physical Dimensions

Approx 43.5 × 43.5 × 11 mm; weight around 50–55 g depending on strap

Colors Available

Black, Silver