Main Features:

• 1. Large screen with dynamic color display, the display area is increased by about 20% again, 100+ themed watch faces
• 2. 11 sports modes, rowing machine, skipping rope, yoga, elliptical machine
• 3. 50 meters waterproof, can be worn in rain or swimming
• 4. 24-hour heart rate monitoring, real-time monitoring, heart rate warning
• 5. 24-hour sleep monitoring, REM rapid eye movement, sporadic naps
• 6. New women's health, physiological period record and reminder
• 7, 14 days long battery life
• 8. Magnetic charging, direct charging without disassembly

Screen:

• 1.1"AMOLED screen
• Screen resolution: 126*294
• Number of screen colors: 16 bit
• Screen backlight: maximum brightness ≥450nit, adjustable brightness
• Screen buttons: 1 touch button (wake up, return)

Sensor:

• High-precision six-axis sensor + PPG heart rate sensor
• Six-axis sensor: low-power three-axis acceleration sensor + three-axis gyroscope

Battery Life:

• 14 days long battery life, magnetic charging
• Charging method: magnetic charging
• Charging time: <2 hours
• Endurance: ≥14 days

Sports:

• 11 professional sports modes
• Support sports types: outdoor running, walking, cycling, indoor running, pool swimming, exercise, indoor cycling, elliptical machine, skipping rope, yoga, rowing machine
• Support running, walking automatic detection, speed reminder, whole kilometer reminder, high heart rate reminder

Health:

• 24-hour heart rate sleep monitoring + women's health
• Heart rate monitoring: infrared detection heart rate (only supported by NFC version), all-day heart rate, manual heart rate,
• Resting heart rate, heart rate curve
• Sleep monitoring: deep sleep, light sleep, REM rapid eye movement, sporadic naps
• Women's Health: Records and reminders of physiology and ovulation
• Stress monitoring, breathing training, PAI vitality index assessment, sedentary reminder, step recording, goal setting

Other functions:

• Take pictures remotely, play music, find phone, mute phone, unlock phone, unlock notebook, call reminder, do not disturb phone, WeChat reminder, APP message reminder, calendar reminder, event reminder, weather forecast, timer, countdown, alarm clock, Bluetooth broadcast , Online dial, custom dial, preset dial, screen lock, off-wrist detection, charging progress display, choice of wearing method, OTA upgrade.

• Use built-in GPS to see your pace and distance on screen during outdoor runs, rides, hikes and more and see a workout intensity map in the app that shows your heart rate changes along your route
• With Active Zone Minutes, feel a buzz when you reach your target heart rate zones during exercise, and celebrate when you earn extra minutes outside of exercise
• Get a 90-day free trial of Fitbit Premium to help you stay active, sleep well and manage stress. Unlock it all in the Fitbit app. (Valid payment method required. Cancel before free trial ends to avoid subscription fees. Offer valid for new Premium users only)
• Use 24/7 heart rate to track resting heart rate & better measure calorie burn
• Play your favorite songs and playlists with Spotify app controls on your wrist. Also make secure purchases with Fitbit Pay and get call, text and smartphone app notifications.
• Track workouts in real-time with 20+ goal-based exercise modes. It’s also swimproof and water resistant to 50M so you can track swims, wear in the shower and more
• Multi-day battery lasts up to 7 days and up to 5 hours when using built-in GPS (varies with use & other factors)
• Track sleep stages & review your in-app Sleep Score for an easy way to see how well you slept.

• Better measure calorie burn, understand resting heart rate & more with 24/7 heart rate tracking and a battery life of up to 7 days (varies with use and other factors); Charge time (0 to100 percent) 2 hours
• Choose from 15 plus exercise modes like run, bike, swim, yoga, circuit training and more, set a goal, and get real time stats during your workouts to see how you can keep getting better
• Automatically record time spent in Light, Deep and REM sleep stages and see activity trends, health insights and personalized guidance in one place with Fitbit Today. Operating temperature is -10° to 45° Celsius
• Swim proof and water resistant to 50 Meters so you can track swims and wear in the shower; We do not recommend wearing Charge 3 in a hot tub or sauna; Also connect to smartphone GPS for real time pace and distance during outdoor runs and rides
• Stay connected to your day with everyday apps for weather and more and get call, text and smartphone app notifications on your wrist; Small wristband Fits a wrist between 5.5 to 7.1 inches; Large wristband Fits a wrist between 7.1 to 8.7 inches
• Radio transceiver: Bluetooth 4.0. Syncing range up to 6 meters

• Wristband width 18mm, Adjustable wrist strap length 155-216mm
• Battery Life: 135mAh battery capacity built in the Mi Band 4, max working time up to 20 days after a full charging.
• Health Monitoring: Support heart rate monitoring, heart rate alerts, sleep monitoring, idle alerts; Monitoring your health data o matain your healthier body
• Activity Tracking: Comes with 6 workout modes: Treadmill, exercise, outdoor running, cycling, walking, swimming Counting step, distance, calories burned during sports
• 5ATM Water Resistant: Up to 50 meters water resistant rate, freely to wear Mi Band 4 when running and exercising
• Display: 0. 95-inch Colorful AMOLED display with 120 x 240 pixels resolution, up to 450 nits screen brightness

• Better measure calorie burn, understand resting heart rate & more with 24/7 heart rate tracking and a battery life of up to 7 days (varies with use and other factors)
• Choose from 15 plus exercise modes like run, bike, swim, yoga, circuit training and more, set a goal, and get real time stats during your workouts to see how you can keep getting better
• Automatically record time spent in light, deep and REM sleep stages and see Activity trends, health insights and personalized guidance in one place with Fitbit today
• Swim proof and water resistant to 50 meters, so you can track swims and wear in the shower; also connect to Smartphone GPS for real time pace and distance during outdoor runs and rides
• Stay connected to your day with everyday apps for weather and more and get called, text and smartphone app notifications on your wrist
• The operating temperature is 10 degree to 45 degree celsius; maximum operating altitude: 8,535 m

• Use built-in GPS to see your pace and distance on screen during outdoor runs, rides, hikes and more and see a workout intensity map in the app that shows your heart rate changes along your route
• With Active Zone Minutes, feel a buzz when you reach your target heart rate zones during exercise, and celebrate when you earn extra minutes outside of exercise
• Get a 90-day free trial of the Fitbit Premium to help you stay active, sleep well and manage stress. Unlock it all in the Fitbit app. (The valid payment method required. Cancel before free trial ends to avoid subscription fees. Offer valid for new Premium users only)
• Use 24/7 heart rate to track resting heart rate & better measure calorie burn
• Play your favorite songs and playlists with Spotify app controls on your wrist. Also make secure purchases with Fitbit Pay and get called, text and smartphone app notifications.
• Track workouts in real-time with 20+ goal-based exercise modes. It’s also swimproof and water resistant to 50M, so you can track swims, we're in the shower and more
• Multi-day battery lasts up to 7 days and up to 5 hours when using built-in GPS (varies with use & other factors)

• Automatic Fitness Tracking: Walk, run, cycle, even hop on the elliptical—the Galaxy Fit automatically detects and tracks what you’re doing.
• Full Color Amoled Display: The always-on, full-color display gives you real-time info at a glance. Touch or swipe to scroll between workouts and notifications.
• Made with a swim-ready design and military-grade durability to protect it against bumps, dust, extreme heat and bitter cold. Case Dimension (H x W)- 45.1 x 18.3 millimeter
• Wellness Monitoring: Tracks daily steps, calories burned, water/caffeine intake and more. Monitors sleep patterns, and sends real-time alerts if detecting an irregularly high heart rate.
• Compatible Devices - Samsung Smartphone, Non-Samsung Android Smartphone(Android OS 5.0 and above, RAM 1.5 GB and above), iOS 10.0 and above, iPhone 7 and above
• Notification & Quick Reply: You’re always connected, so you’ll be notified of incoming calls or texts right on your Galaxy Fit. Plus, send quick, preset replies, and keep an eye on schedules, the forecast and more.