COLMI C28 Smartwatch – Black + Brown Leather Strap
COLMI C28 Smartwatch – Black + Brown Leather Strap
The COLMI C28 is an ultra-slim smartwatch, just 7 mm thick and weighing 39 g, that combines elegant design with extensive functionality. Thanks to the built-in Da GPT assistant, you can quickly get answers to your questions, check information, and much more! The watch features a large 1.93-inch AMOLED HD display with a resolution of 368 × 448, ensuring a clear picture and comfortable use in all conditions. It also supports Bluetooth calls directly from your wrist, offers over 100 sports modes, and helps you monitor your health. Additionally, the 230 mAh battery allows for up to 5–7 days of use on a single charge.
AI on Your Wrist – Quick Answers and Daily Support
The COLMI C28 is equipped with the ChatGPT-based AI assistant Da GPT, which offers AI support directly from the watch. This lets you quickly get answers to questions, check information, or use content generation features without reaching for your phone! This is a useful solution that enhances the smartwatch’s functionality and ensures you have access to smart tools whenever you need them.
Slim and lightweight design
At just 7 mm thick, the C28 is almost imperceptible on your wrist, and its 39 g weight further enhances all-day comfort. The slim case fits comfortably on your wrist, making the smartwatch perfect for work, physical activity, or relaxation. It’s the ideal solution for those who dislike heavy, bulky watches.
Vivid 1.933” AMOLED screen – comfort in every situation
The large 1.933-inch AMOLED display offers a high resolution of 368 × 448 and a wide color palette, resulting in a clear and detailed image. The screen ensures good visibility in both bright daylight and low light, so all information is always easily accessible. The high screen-to-body ratio (90%) further enhances user comfort.
Eye-catching style and craftsmanship
The zinc alloy case stands out with an elegant, glossy finish that gives the watch a modern character. The combination of a metallic texture with a smooth surface makes the smartwatch look stylish in both everyday and more formal situations. The whole look is complemented by a comfortable strap that feels pleasant to the touch and fits snugly on the wrist.
Bluetooth Calls
With the Bluetooth calling feature, you can answer and make calls directly from your watch. The built-in speaker and excellent sound quality allow you to communicate conveniently without reaching for your phone. This is especially useful while working, walking, or working out!
Advanced health features
The smartwatch offers 24/7 heart rate monitoring and also accurately measures blood oxygen saturation and stress levels. Additionally, AI-powered sleep analysis is available, covering various sleep stages and daytime naps, allowing you to better understand the quality of your rest and make informed changes to your daily habits. All of this allows you to detect any concerning changes sooner and respond appropriately. Furthermore, the movement reminder feature helps ensure you stay active throughout the day.
Over 100 sports modes and accurate activity tracking
The COLMI C28 offers over 100 sports modes—you’re sure to find something for yourself. Walking, running, or maybe cycling or badminton? Train in your favorite sport or try something new! The watch records data from every workout, helping you analyze your progress and better plan your next sessions. It’s practical support for those who want to maintain consistency and control over their activity.
Smart features and notifications on your wrist
The watch lets you receive notifications from popular apps like WhatsApp, Facebook, and TikTok, so you can quickly check your messages without taking out your phone. There’s also a watch face customization feature that lets you tailor the interface’s look to your preferences—you can use pre-designed templates or set your own photo.
Everyday durability and long battery life
With 1ATM water resistance and dust protection (IP6X), the smartwatch performs well in everyday use—including during workouts or in the rain. Additionally, the 230 mAh battery provides up to 5–7 days of battery life, and magnetic charging allows you to fully recharge the watch in about 2.5 hours.
Included
SmartwatchMagnetic charging cableUser manual
| 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 | Approx. 10 m |
| Display | AMOLED |
| Display diagonal | 1.93 inches |
| Resolution | 368 x 448 px |
| Viewing angle | 89 / 89 / 89 / 89 |
| Touch type | Full-screen |
| Screen material | Glass |
| Screen fit | Full fit with OCA |
| Battery type | Lithium-polymer |
| Battery capacity | 230 mAh |
| Protection chip | Seiko Y1 |
| Charging method | 2-pin magnetic cable |
| Number of charging cycles | Over 300 |
| Charging time | Approx. 2–2.5 hours |
| Operating time | Approx. 4–7 days |
| Standby time | Approx. 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 |
| Interchangeable strap | Yes |
| Compatible systems | Android 5.0 and later, iOS 9.0 and later, Harmony OS |
| App | COLMI Fit |
| Water resistance | 1ATM |
| 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, jumping rope, badminton, basketball, soccer, climbing, tennis, rugby, golf, yoga, workout, dancing, baseball, elliptical trainer, stationary bike, custom workout, rowing machine, outdoor running, walking, kabaddi, rock climbing, skateboarding, rollerblading, parkour, ATV, paragliding, triathlon, dumbbells, sit-ups, indoor walking, indoor running, stepper, stair climbing, stepper, core training, flexibility, Pilates, gymnastics, stretching, strength, cross-training, aerobics, physical training, wall ball, barbell, deadlift, upper body, functional training, burpees, back, lower body, abs, 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 soccer, beach volleyball, sepak takraw, skiing, ice skating, curling, other winter sports, snowmobiling, ice hockey, bobsledding, luge, archery, darts, tug-of-war, hula hooping, kite flying, horseback riding, Frisbee, golf, equestrian sports, car racing, track and field, sailing, water polo, other water sports, paddleboarding, water skiing, kayaking, rafting, rowing, motorboats, fin swimming, scuba diving, artistic swimming, snorkeling, kitesurfing, open-water swimming |