PurePulse continuous, automatic wrist based heart rate tracking to better measure calorie burn all day; Operating temperature: 14 degree to 113 degree fahrenheit, Maximum operating altitude: 30,000 feet
Maximize your workouts using simplified heart rate zones (Fat Burn, Cardio and Peak); Charge 2 syncs wirelessly & automatically to 200+ iPhone, Android and Windows devices; Water Resistance : Fitbit Charge 2 is sweat, rain and splash proof; However, the device is not swim proof or shower proof
See call, text & calendar notifications on the OLED display; Automatically track how long and how well you sleep and wake with a silent vibrating alarm; Troubleshoot If not getting a heart rate signal, wear your tracker correctly, either moving it higher or lower on your wrist or tightening or loosening the band; If the heart rate signal is still missing, check your heart rate setting on your fitbit dashboard and make sure its set to on or auto
Get a better understanding of your fitness level and see how you can improve over time with a personalized Cardio Fitness Score; Use Connected GPS during run mode to see real time stats like pace and distance on your wrist
Track all day activity like steps, distance, calories burned, floors climbed and active minutes;Find moments of calm throughout your day with personalized guided breathing sessions based on your heart rate, Like all heart rate tracking technologies, accuracy is affected by physiology, location of device, and different movements
Sync stats wireless & automatically to computers and 200+ leading iOS, Android and Windows devices; The minimum and maximum circumference range between 170 to 206 millimeters
One syncs automatically and wirelessly to tablets, computers and 150+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology.
Syncing to computers requires Internet connection and USB port. Syncing to mobile devices requires Bluetooth and Internet connection. Syncing range: 20 feet
Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices
We recommend charging your device every few days to ensure you are always tracking. Charge time: One to two hours
Water Resistance: Charge HR is sweat, rain and splash proof. However, the device is not swim proof or showerproof. With any wearable device, it's best for your skin if the band stays dry and clean. Battery life: lasts up to 5 days. Radio transceiver: Bluetooth 4.0
Get continuous, automatic, wrist-based heart rate and simplified heart rate zones
Track workouts, heart rate, distance, calories burned, floors climbed, active minutes and steps
Monitor your sleep automatically and wake with a silent alarm
See call notifications, daily stats and time of day on the OLED display
Sync stats wirelessly and automatically to your computer and over 120 leading smartphones
Get the power of continuous heart rate in Fitbit's slimmest design yet all day, during workouts and beyond
With heart rate, you can better measure calorie burn, and use zones (Fat Burn, Cardio, and Peak) to find the right workout intensity for your goals
See how working out more can improve your health by comparing your resting heart rate trends to your activity
With sleep stages powered by PurePulse heart rate, automatically track your time spent in light, deep and REM sleep and take steps toward a better night's rest
Automatically track your steps, distance, calories burned and active minutes with up to 7 days of battery life (varies with use and other factors)
Fitbit does not guarantee the quality or authenticity of products purchased from non authorized resellers on Amazon, and they are not eligible for warranty/replacement; Authorized Fitbit retailers: Amazon.com, Heart Rate Monitors USA and Clever Training
Fitness Tracker: Monitor your activity levels, sleep patterns, and more with Mi Band 2 which can record your steps, distance, pace, calories burned and active minutes, and sync its data via Bluetooth 4.0 to the Mi Fit app
Smart Reminder: When your phone receives calls, messages or other notifications such as from Facebook, Mi Band 2 will vibrate to remind you. Simply lift your arm to view the notification icon on the display screen with caller name/ID when you receive a call
Sleep Monitor: MI Band 2 can monitor your whole sleep cycle, automatically recognize the stage of sleep (deep or light sleep) via heart rate monitoring, record the data and duration of every stage accurately, and help to analyze and improve your sleep quality
IP67 Water-Resistant Wristband Watch: MI Band 2 is durable and resistant against water splashes, sweat, cosmetics, dust and more. You don't need to worry when doing daily routines, even when washing hands or taking a shower
Compatibility: Support for Bluetooth 4.0 and above, Android 4.4 and above and iOS 7.1 and above iOS. Install MI Fit app to get instant statistics and set alarms, notification alerts, and other functions
ULTRA-LONG BATTERY LIFE : The Polar Vantage M Advanced GPS Running & Multisport Watch lasts for up to 30 hours of training time.
POLAR PRECISION PRIME HEART RATE : Polar's heart rate monitor watches redefine the gold standard in optical heart rate accuracy by combining the latest in bio-impedance electrodes and optical sensors.
TRAINING LOAD PRO: The Vantage M is the ultimate fitness tracker, separating cardio load, muscle load and perceived load. Polar's Training Load Pro provides an unparalleled look into how your training affects your body
SWIM/BIKE/RUN FUNCTIONALITY : As a waterproof watch, long-distance running watch and biking activity tracker combined, you can capture key metrics like swimming stroke and pace. You can even pair with your favorite compatible cycling accessory.
PERSONALIZE WITH YOUR OWN STYLE : With customizable fitness band options, tailor your Vantage M with replaceable wrist bands of multiple colors.
1.More Accurate Fitness Tracker: Based on Mi band 2, the 3rd Generation updates its algorithm to be more accurate in recording your activity levels: steps, distance, pace, calories burned and active minutes, sleep patterns: light/deep sleeping, heart rate status and weather forecast for today, tomorrow and the day after. Of course, Mi Band 3 keeps the function of data syncing via MiFit App so you can still check daily, weekly, and monthly history to make a scientific workout program
2.50m Water-Resistant Swimming Wristband Bracelets: Featured with 5ATM Water Resistance technology, Xiaomi Mi Band 3 can work well 50m under water, deeper than most similar fitness trackers and smart watches in the market can handle, which fulfill all your daily routines, you don't need to worry when taking shower, washing, running in the rain, swimming and surfing.
3.Real-time Sports Data Activity Tracker: With creative added screen sports mode design, you can check data, even during exercises, simply by lifting your arm, without complicated actions of checking the app on your phone. You can adjust your sports mode in time after detailed statistics analysis, such as distance measuring, speed calculating, pace tracking, real-time heart rate monitoring etc.
4.More Convenient Smart Reminder with Larger Readable Touchscreen: Compared with Mi Band 2, Xiaomi mi Band 3 has a bigger display OLED screen, furthermore it's touchscreen which is easier to use. And it not only reminds you via vibrating on wrist when your phone receives calls, messages or other notifications such as from Facebook, Twitter, Snapchat, WhatsApp and WeChat, but also displays details on the screen directly, such as readable content of massage and name or ID of the caller etc.
5.Meticulous Anti-Lost Design & Wide Compatibility: With firmly lock chips, Mi Band 3 is not easy to lose (the two-color synthesis process has passed 2000 disassembly tests and is still firm and reliable). It can support for Bluetooth 4.0 and above, Android 4.4 and above, and iOS 9.0 and above, including most smart phones in marketing.
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