COLMI L28 Smart Watch (Silver-purple + silver steel strap)

Design and display

The COLMI L28 smartwatch with a stainless steel bracelet combines a refined finish, compact dimensions and a slim 7.9 mm profile. Its 48 × 41.5 mm silver case is designed to sit comfortably on the wrist. The watch has a 1.32-inch AMOLED touchscreen with a resolution of 466 × 466 pixels, vivid colours and a curved, frameless design. Always-on Display lets you check the time without waking the screen. Choose from more than 100 watch faces, or create a personalised design with the AI Watchface feature.

Health and wellness monitoring

The VC30F optical heart-rate sensor supports continuous, 24-hour pulse monitoring and vibration alerts for detected irregularities. The watch also measures blood oxygen saturation (SpO₂), blood pressure and stress. Sleep analysis records REM, light and deep sleep phases and provides information about sleep quality. Cycle-tracking features include menstrual-cycle, ovulation and fertile-day tracking, with related reminders available through the app.

AI assistant and everyday functions

The built-in GPT function can answer questions and assist with everyday tasks. A smart voice assistant provides hands-free access to selected functions and information. The watch also includes weather, alarms, a timer, stopwatch, world clock, calculator, flashlight, phone-finding function, camera shutter control and media-player controls.

Sports and activity tracking

More than 100 sports modes cover activities including walking, running, cycling, jump rope, yoga, golf, swimming and strength training. During workouts, the watch records activity duration, heart rate and calories burned. The COLMI Fit app provides activity data such as steps, distance, calories and walking time, along with workout records and trends.

Calls and notifications

Bluetooth calling lets you make and receive calls from your wrist using the built-in microphone and speaker with HD Voice. You can answer or reject calls, browse contacts and view call history. The watch syncs notifications from apps and services, including WhatsApp, SMS and Facebook.

Construction, battery and compatibility

The case is made from metal and ABS + PC plastic, with a glass touchscreen and a rotary crown. The included strap options are stainless steel and silicone; the watch is also specified for use with a leather strap. It weighs 36 g with the silicone strap, 77 g with the metal strap and 32 g with the leather strap. IP68 protection is intended for everyday exposure to splashes and water. The 200 mAh lithium-polymer battery provides 5–7 days of typical use and up to 15 days of standby time. Charging takes approximately 2 hours using the supplied 2-pin magnetic cable. The battery is rated for more than 300 charging cycles, and the protection system is Seiko Y1.

Technical specifications

• Manufacturer: COLMI
• Model: L28
• Case dimensions: 48 × 41.5 × 7.9 mm
• Case colour: Silver
• Case materials: Metal and ABS + PC plastic
• Strap materials: Stainless steel and silicone
• Strap width: 18 mm
• Button: One rotary crown
• Display: 1.32-inch AMOLED touchscreen, 466 × 466 pixels
• Viewing angle: 89° on each side (89/89/89/89)
• Screen construction: Glass; full-fit connection with OCA
• Bluetooth: BLE 5.2 for app functions and BT 3.0 for voice calls
• Bluetooth range: Up to 10 m
• App: COLMI Fit
• Compatible systems: Android 4.4 and later, iOS 8.0 and later, and HarmonyOS
• Protection rating: IP68
• Bluetooth voice calls: Yes
• Battery: 200 mAh lithium polymer
• Typical operating time: 5–7 days
• Standby time: 15 days
• Charging time: Approximately 2 hours
• Charging method: 2-pin magnetic cable
• Charging cycles: More than 300
• Protection system: Seiko Y1

Languages

Watch languages: English, Chinese, Japanese, Korean, German, French, Spanish, Arabic, Russian, Ukrainian, Italian, Portuguese, Dutch, Polish, Hungarian, Czech, Romanian, Indonesian, Thai, Turkish, Vietnamese, Greek, Malay, Bengali and Kazakh.

App languages: English, Simplified Chinese, Japanese, Korean, German, French, Spanish, Arabic, Russian, Traditional Chinese, Ukrainian, Italian, Portuguese, Dutch, Polish, Swedish, Finnish, Danish, Norwegian, Hungarian, Czech, Bulgarian, Romanian, Slovak, Latvian, Indonesian, Thai, Turkish, Vietnamese, Hindi, Pashto, Lithuanian, Estonian, Slovenian, Croatian and Greek.

Watch and app features

Watch features: Speaker, microphone, activity and exercise tracking, exercise logs, sleep monitoring, heart-rate monitoring, blood-pressure measurement, SpO₂ measurement, stress monitoring, cycle tracking, phone calls, messages, weather, AI voice assistant, camera shutter, media player, timer, alarm, stopwatch, world clock, stock information, calculator, phone finder, flashlight, Da GPT, AI watch face, settings, brightness control, automatic sleep mode, watch-face selection, menu view, wrist-raise activation, cover-to-sleep mode, vibration and ringtone, Do Not Disturb mode, sleep mode, low-power mode, phone power control, media-sound control, reset, screen timeout, time settings, night mode, language settings, restart, power off, app downloads and certification information.

App features: Steps, distance, calories, walking time, seven-day step history, step comparison, sleep monitoring, sleep-quality rating and seven-day sleep trends, heart rate and seven-day heart-rate trends, blood pressure and seven-day blood-pressure trends, blood oxygen and seven-day SpO₂ trends, stress, period tracking (activate by setting the app profile to female), weight, intake reminders, outdoor running, walking and cycling, additional workout data, watch battery level, watch-face selection and store, AI watch faces, Da GPT, notifications, device finder, alarms, world clock, factory settings, snapshot, e-card, favourite contacts, time format, unit system, language, auto-lock, quick view, phone-music control, Do Not Disturb settings, battery-saver mode, weather settings, SOS emergency assistance, continuous heart-rate monitoring, movement reminders, heart-rate alerts, cycle days, menstruation days, last menstrual-period start date, cycle and menstrual reminders and calendar, reset, updates, goal setting, profile and background-operation protection guide.

Sports modes

Available modes include walking, running, cycling, jump rope, badminton, basketball, football, climbing, tennis, rugby, golf, yoga, fitness, dance, baseball, elliptical training, stationary cycling, free training, rowing machine, sailing, water polo, other water sports, paddleboarding, water skiing, canoeing, rafting, rowing, motorboating, kitesurfing, rock climbing, skateboarding, rollerblading, parkour, quad biking, paragliding, triathlon, cross-country running, kabaddi, stepper, stair climbing, core training, stretching, Pilates, gymnastics, strength training, cross training, aerobics, physical training, wall ball, dumbbells, barbells, deadlifts, upper-body training, abs, functional training, burpees, back training, lower-body training, abdominal-muscle training, HIIT, indoor walking, indoor running, weightlifting, square dancing, belly dancing, ballet, Zumba, Latin American dancing, street dancing, folk dancing, jazz dancing, boxing, wrestling, martial arts, tai chi, Muay Thai, judo, taekwondo, karate, kickboxing, fencing, kendo, volleyball, softball, hockey, table tennis, cricket, handball, squash, beach football, beach volleyball, sepak takraw, bowling, ice skating, curling, other winter sports, snowmobiling, ice hockey, bobsledding, sledding, skiing, archery, darts, tug-of-war, hula hooping, kite flying, horseback riding, Frisbee, fishing, equestrian sports, athletics and car racing.

Included

• COLMI L28 watch
• Magnetic charging cable
• Stainless steel and silicone straps
• Strap-removal tool for steel straps
• User manual