COLMI L28 Smart Watch (black + black steel strap)

COLMI L28 Smart Watch

The COLMI L28 smartwatch with a steel bracelet combines a refined finish, compact dimensions and a slim 7.9 mm profile. Its 48 × 41.5 mm case is designed to sit comfortably on the wrist. Features for health monitoring, activity tracking and everyday organization include Bluetooth calling, heart-rate and sleep monitoring, smart notifications and more than 100 sports modes.

AMOLED display and watch faces

The 1.32-inch AMOLED touchscreen has a resolution of 466 × 466 pixels for clear detail and vivid color. Its curved, frameless design complements the case, while the Always-on Display lets you check the time without waking the screen. Choose from more than 100 watch-face styles, from classic to modern, and customize the interface to suit your preferences.

Health and wellness monitoring

The VC30F optical heart-rate sensor monitors pulse around the clock and can provide vibration alerts when it detects irregularities. Blood oxygen (SpO₂) measurements help you track oxygen levels, including during sleep. Sleep analysis separates sleep into REM, light and deep phases to help you review rest quality. The watch also includes menstrual-cycle tracking, with cycle, ovulation and fertile-day information.

AI assistant

The built-in GPT function can help organize your day, answer questions and assist with everyday tasks. The AI Watchface feature lets you create personalized watch faces based on your preferences and style.

Activity tracking

With more than 100 sports modes—including running, cycling, jump rope, yoga and golf—the COLMI L28 records workout duration, heart rate and calories burned. Activity data can help you review training and work toward your goals.

Calls and smart features

Bluetooth 5.2 and a built-in microphone and speaker with HD Voice enable calls from the watch. You can answer or reject calls, view contacts and check call history. The watch syncs notifications from apps such as WhatsApp, SMS and Facebook. A smart voice assistant provides hands-free access to functions and information.

Design, battery and water resistance

The watch weighs 77 g with the steel strap and is rated IP68 for resistance to splashes and water exposure in everyday situations. Its 200 mAh lithium-polymer battery provides approximately 5–7 days of typical use, with up to 15 days of standby time. Charging takes approximately 2 hours using the 2-pin magnetic cable.

Specifications

• Manufacturer: COLMI
• Model: L28
• Case dimensions: 48 × 41.5 × 7.9 mm
• Case color: Black
• Case materials: Metal, ABS and PC plastic
• Straps: Stainless steel and silicone
• Strap width: 18 mm
• Weight: 36 g with silicone strap; 77 g with metal strap; 32 g with leather strap
• Button: One rotary crown
• Battery: Lithium polymer, 200 mAh
• Charging: 2-pin magnetic cable; approximately 2 hours
• Operating time: 5–7 days of typical use
• Standby time: 15 days
• Charging cycles: More than 300
• Protection system: Seiko Y1
• Display: 1.32-inch AMOLED touchscreen, 466 × 466 pixels
• Viewing angle: 89° on each side (89/89/89/89)
• Screen construction: Glass, full-fit OCA connection
• Bluetooth: BLE 5.2 for app functions and BT 3.0 for voice calls
• Bluetooth range: Up to 10 m
• App: COLMI Fit
• Compatible operating systems: Android 4.4 and later, iOS 8.0 and later, and HarmonyOS
• Protection rating: IP68
• Bluetooth voice calls: Supported
• Smartwatch 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

Smartwatch functions

• Speaker and microphone; activity and exercise tracking and logs; sleep, heart-rate, blood-pressure, SpO₂ and stress monitoring; cycle tracking
• Phone calls, messages, weather, AI voice assistant, camera shutter and media player
• Timer, alarm, stopwatch, world clock, stock information, calculator, find phone and flashlight
• Da GPT and AI watch face; settings, brightness, automatic sleep mode, watch faces and menu views
• Wrist-raise activation, cover-to-sleep, vibration and ringtone, Do Not Disturb, sleep and low-power modes
• Phone and media sound controls; screen timeout, time and night-mode settings; language selection, restart, power off, reset, version information, app download and certification information

App functions

• Steps, distance, calories, walking time, seven-day step history and comparison with others
• Sleep monitoring, quality rating and seven-day trends
• Heart-rate, blood-pressure, blood-oxygen and stress monitoring, with seven-day trends
• Cycle tracking, weight, intake reminders, outdoor running, walking and cycling, and additional workout data
• Watch battery level, watch-face selection and store, AI watch faces and Da GPT
• Notifications, find device, alarms, world clock, factory settings, snapshot, e-card and favorite contacts
• Time format, unit system, language, auto lock, quick view, phone music controls, Do Not Disturb settings, battery saver and weather settings
• SOS emergency assistance, continuous heart-rate monitoring, movement reminders and heart-rate alerts
• Cycle-day and menstruation-day settings, last menstrual-period start date, reminder mode and time, calendar and reminders
• Reset and update functions, customer service, goal setting, profile and background protection guide

Sports modes

• Walking and running: Walking, indoor walking, running, indoor running, cross-country running and athletics
• Cycling and outdoor: Cycling, stationary cycling, quad biking, car racing, horseback riding and equestrian sports
• Fitness and training: Fitness, free training, core training, stretching, Pilates, gymnastics, strength training, cross training, aerobics, physical training, wall ball, dumbbells, barbells, deadlifts, upper body, abs, functional training, burpees, back, lower body, abdominal muscles, HIIT, weightlifting, stepper and stair climbing
• Dance: Square dancing, belly dancing, ballet, Zumba, Latin American dancing, street dancing, folk dancing and jazz dancing
• Racquet, ball and team sports: Badminton, basketball, soccer, tennis, rugby, golf, baseball, volleyball, softball, hockey, table tennis, cricket, handball, squash, billiards, beach soccer, beach volleyball, sepak takraw, bowling and Frisbee
• Water sports: Sailing, water polo, other water sports, paddleboarding, water skiing, canoeing, rafting, rowing, motorboating and kitesurfing
• Combat sports: Boxing, wrestling, martial arts, tai chi, Muay Thai, judo, taekwondo, karate, kickboxing, fencing and kendo
• Outdoor and adventure: Climbing, rock climbing, skateboarding, rollerblading, parkour, paragliding, triathlon, fishing, archery, darts, tug-of-war, hula hooping, kite flying and kabaddi
• Winter sports: Ice skating, curling, other winter sports, snowmobiling, ice hockey, bobsledding, sledding and skiing
• Jump rope, elliptical training, rowing machine, yoga, dance, sailing, stepper and other listed activities

Included

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