The elegant and ultra-thin COLMI C28 smartwatch combines a 1.93” HD AMOLED display, Bluetooth calls, the Da GPT AI assistant and health monitoring with a battery life of up to 5–7 days. It is ideal for everyday wear, sports and work, with a stylish silver case and brown leather strap.
Large AMOLED display for perfect readability
Enjoy a 1.93” AMOLED display with a resolution of 368 × 448 px, offering vivid colours, fine details and convenient operation. A wide selection of watch faces helps match the watch’s appearance to your style.
Bluetooth calls directly from your wrist
Thanks to the built-in speaker and microphone, you can receive and make calls via Bluetooth without taking out your phone. Ideal at work, while walking or during training.
Elegant, thin and comfortable design
The ultra-thin case, just 7 mm thick, looks modern and is very comfortable on the wrist. The silver metal body is complemented by a brown leather strap with distinctive stitching, creating a stylish look for the city and office.
The COLMI C28 is designed for comfort and performance: thanks to its thickness of just 7 mm and large AMOLED display, all important data is clearly available on your wrist. It supports Bluetooth calling, displays app notifications and offers extensive watch-face personalisation options.
The watch helps you care for your health and fitness by monitoring heart rate, SpO2, stress and sleep, including daytime naps. Athletes can use 100+ sports modes and clear activity records. 1 ATM water resistance and IP6X protection are suitable for everyday use, while the 230 mAh battery lasts several days without charging.
Main benefits:
- 1.93” AMOLED (368 × 448 px) with a high screen-to-body ratio
- Da GPT AI assistant for quick queries and support throughout the day
- Bluetooth calls (microphone + speaker)
- Health monitoring: heart rate, SpO2, stress and sleep
- 100+ sports modes and activity tracking
- 4–7 days of battery life, magnetic charging in approximately 2–2.5 hours
- Replaceable strap, 20 mm wide
Specifications
- Manufacturer
- Colmi
- Model
- C28
- Colour
- Silver + brown strap
- Main chipset
- JL7074
- Flash memory
- RAM: 316K, ROM: 128M
- Heart-rate sensor
- VC30F
- Bluetooth version
- 5.3
- Bluetooth range
- Approximately 10 m
- Display
- AMOLED
- Display diagonal
- 1.93 inches
- Resolution
- 368 x 448 px
- Viewing angle
- 89 / 89 / 89 / 89
- Touchscreen type
- Full-surface
- Display material
- Glass
- Display fitting
- Full fitting with OCA
- Battery type
- Lithium-polymer
- Battery capacity
- 230 mAh
- Protection chip
- Seiko Y1
- Charging method
- 2-pin magnetic cable
- Number of charging cycles
- More than 300
- Charging time
- Approximately 2–2.5 hours
- Operating time
- Approximately 4–7 days
- Standby time
- Approximately 20 days
- Speaker
- Yes
- Microphone
- Yes
- Case dimensions
- 46 x 40 x 7 mm
- Strap
- Leather
- Material
- Metal + iML
- Buttons
- 1 aluminium-alloy button
- Watch weight
- 39 g (with silicone strap)
- Strap width
- 20 mm
- Replaceable strap
- Yes
- Compatible systems
- Android 5.0 and later, iOS 9.0 and later, Harmony OS
- App
- COLMI Fit
- Water resistance
- 1 ATM
- Updates
- OTA
- Watch languages
- English, Simplified Chinese, Korean, German, French, Spanish, Arabic, Russian, Ukrainian, Italian, Portuguese, Polish, Bengali
- App languages
- English, Simplified Chinese, Traditional Chinese, German, French, Arabic, Czech, Greek, Spanish, Japanese, Persian, Italian, Korean, Polish, Portuguese, Russian, Finnish, Swedish, Thai, Hungarian, Slovak, Croatian, Albanian, Turkish, Ukrainian
- Training modes
- Walking, running, cycling, jump rope, badminton, basketball, football, climbing, tennis, rugby, golf, yoga, exercise, dancing, baseball, elliptical trainer, stationary bike, custom exercise, rowing machine, outdoor running, walking, kabaddi, mountaineering, skateboarding, roller skating, parkour, quad biking, paragliding, triathlon, dumbbells, sit-ups, indoor walking, indoor running, stepper, stair walking, stepper, core training, flexibility, Pilates, gymnastics, stretching, strength, cross-training, aerobics, physical education, wall ball, dumbbell, deadlift, upper body, functional training, burpees, back, lower body, abdominal muscles, HIIT, weightlifting, square dance, belly dancing, ballet, Zumba, Latin dancing, street dance, folk dancing, jazz dancing, boxing, wrestling, martial arts, tai chi, Muay Thai, judo, taekwondo, karate, kickboxing, fencing, kendo, bowling, cricket, volleyball, softball, hockey, table tennis, handball, squash, billiards, badminton, beach football, beach volleyball, sepak takraw, skiing, skating, curling, other winter sports, snowmobile riding, ice hockey, bobsleigh, sledding, archery, darts, tug of war, hula hoop, kite flying, horse riding, frisbee, golf, equestrian sports, car racing, athletics, yachting, water polo, other water sports, paddleboarding, water skiing, kayaking, rafting, rowing, motor boating, fin swimming, diving, synchronised swimming, snorkelling, kitesurfing, open-water swimming
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