Stylish COLMI C28 smartwatches combine an ultra-thin 7 mm body, a 1.93" AMOLED HD display, and practical everyday features. They offer Bluetooth calls, the Da GPT AI assistant, health monitoring (heart rate, SpO2, stress, sleep), and 100+ sport modes. With a 230 mAh battery, they last approximately 4–7 days on a single charge.
Large 1.93" AMOLED display with HD resolution
Enjoy a bright, detailed picture thanks to the 1.93" AMOLED display with a resolution of 368 × 448 px. The high screen-to-body ratio (90%) improves readability and control and makes it easier to work with notifications, sport metrics, and watch faces.
Ultra-thin and lightweight design for all-day comfort
The watch body is only 7 mm thick, so it feels discreet on the wrist and remains comfortable at work and during sports. The elegant design is complemented by a brown leather strap with stitching for a stylish, premium look.
Stylish metal case and control crown
The combination of a metal case and a side crown/button ensures comfortable control and a modern look. The watch suits everyday outfits as well as more formal occasions.
COLMI C28 is a smartwatch designed for everyday comfort and an active lifestyle. Thanks to the large AMOLED display with a resolution of 368 × 448 px, you get excellent readability and vivid colors at home, in the office, and outdoors. The elegant metal case is complemented by a brown leather strap that looks presentable while still being comfortable to wear.
The watch supports Bluetooth calling—you can conveniently handle calls right from your wrist thanks to the built-in speaker and microphone. There are also smart notifications from selected apps and the option to customize the watch face to match your style.
Main advantages:
- Da GPT AI assistant for quick answers and help in everyday situations
- Ultra-thin design (7 mm) and low weight for all-day comfort
- Health features: heart rate, SpO2, stress, sleep analysis (including naps)
- More than 100 sport modes and workout records for a better overview of your activity
- IP6X resistance and 1 ATM water resistance for everyday use
- Battery life up to 4–7 days, magnetic charging approx. 2–2.5 hours
Specifications
- Manufacturer
- Colmi
- Model
- C28
- Color
- Black + 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 size
- 1.93 inches
- Resolution
- 368 x 448 px
- Viewing angle
- 89 / 89 / 89 / 89
- Touchscreen type
- Full-screen
- Display material
- Glass
- Display lamination
- Full lamination 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 button made of aluminum alloy
- Watch weight
- 39 g (with silicone strap)
- Strap width
- 20 mm
- Replaceable strap
- Yes
- Compatible systems
- Android 5.0 and newer, iOS 9.0 and newer, 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, workout, dance, baseball, elliptical, stationary bike, custom workout, rowing machine, outdoor running, walking, kabaddi, mountaineering, skateboarding, roller skating, parkour, ATV, 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, barbell, deadlift, upper body, functional training, burpees, back, lower body, abs, HIIT, weightlifting, square dance, belly dance, ballet, Zumba, Latin dances, street dance, folk dances, 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 soccer, beach volleyball, sepak takraw, skiing, skating, curling, other winter sports, snowmobile, ice hockey, bobsleigh, sledding, archery, darts, tug of war, hula hoop, kite flying, horseback riding, frisbee, golf, equestrian sports, car racing, athletics, yachting, water polo, other water sports, paddleboarding, water skiing, kayaking, rafting, rowing, motorboats, fin swimming, diving, synchronized swimming, snorkeling, kitesurfing, open-water swimming
