The elegant COLMI C28 smartwatch combines an ultra-thin 7 mm body and low weight with a large 1.93" AMOLED HD display. It offers Bluetooth calling, the Da GPT AI assistant, more than 100 sports modes, health monitoring (heart rate, SpO2, stress, sleep), and up to 5–7 days of battery life on a single charge.
Large 1.93" AMOLED HD display
Enjoy vivid colors and sharp details thanks to the AMOLED panel with a resolution of 368 × 448 px. The large diagonal improves the readability of notifications and metrics, as well as touch control indoors and outdoors.
Bluetooth calling directly from your wrist
Thanks to the built-in microphone and speaker, you can conveniently make and receive calls via Bluetooth 5.3. Ideal at work, while walking, or during training.
Ultra-thin and lightweight design for all-day comfort
The case is only 7 mm thick and weighs 39 g (according to the specifications), making it designed for maximum comfort. The elegant metal body and leather strap enhance your style for every occasion.
The COLMI C28 is a stylish smartwatch for everyday wear – at work, during sports, and at social events. The gold metal case combined with the white leather strap looks premium, while the watch remains very comfortable even for all-day wear thanks to its thickness of just 7 mm. Excellent readability is provided by the 1.93" AMOLED display with a resolution of 368 × 448 px and a high screen-to-body ratio.
You will appreciate the practical features throughout the day and during training: you can make calls directly from your wrist (speaker and microphone), receive app notifications, and customize the watch face to match your style. Health and fitness features include continuous heart-rate measurement, SpO2, stress, AI sleep analysis, and more than 100 sports modes.
Main benefits:
- Da GPT AI assistant for quick answers and support throughout the day
- 1.93" AMOLED HD display – vivid colors and excellent readability
- Bluetooth calls – make calls without taking out your phone
- 4–7 days of battery life and magnetic charging (approx. 2–2.5 hours)
- IP6X protection and 1 ATM water resistance for everyday use
- Replaceable strap (20 mm wide)
Package contents:
- Smartwatch
- Magnetic charging cable
- User manual
Specifications
- Manufacturer
- Colmi
- Model
- C28
- Color
- Gold + white 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-screen
- Display material
- Glass
- Display customization
- Full customization 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 aluminum-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
- Dust protection
- IP6X
- 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 workout, rowing machine, outdoor running, walking, kabaddi, mountaineering, skateboarding, roller skating, parkour, quad biking, paragliding, triathlon, dumbbells, sit-ups, indoor walking, indoor running, stepper, stair climbing, core training, flexibility, Pilates, gymnastics, stretching, strength, cross-training, aerobics, physical education, wall ball, barbell, deadlift, upper body, functional training, burpees, back, lower body, abdominal muscles, HIIT, weightlifting, square dance, belly dance, ballet, Zumba, Latin dance, street dance, folk dance, jazz dance, 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, snowmobiling, ice hockey, bobsledding, 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, synchronized swimming, snorkeling, kitesurfing, open-water swimming
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