Last Updated & Fact Checked: March 21, 2026
Are you trying to decide between the Fitbit Charge HR and the Fitbit Flex?
Product Versus will provide you with all the product details so you can quickly compare the facts to find which product is right for you – the Fitbit Charge HR or the Fitbit Flex – and find out exactly what the differences are.
Both the Fitbit Charge HR and the Fitbit Flex are quality products, so read on to find out which one is best for your needs!
Fitbit Charge HR quick facts
Fitbit Flex quick facts
Fitbit Charge HR product details
Bestseller No. 1
Fitbit Charge 6 Fitness Tracker with Google apps, Heart Rate on Exercise Equipment, 6-Months Premium Membership Included, GPS, Health Tools and More, Obsidian/Black, One Size (S & L Bands Included)
- Find your way seamlessly during runs or rides with turn-by-turn directions from Google Maps on Fitbit Charge 6[7, 8]; and when you need a snack break on the go, just tap to pay with Google Wallet[8, 9]
Bestseller No. 2
Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Large (US Version), 1 Count
- PurePulse continuous, automatic wrist based heart rate tracking to better measure calorie burn all day
- Maximize your workouts using simplified heart rate zones (Fat Burn, Cardio and Peak). Splash proof. Do not shower with the device or submerge it in water
- See call, text and calendar notifications on the OLED display; Automatically track how long and how well you sleep and wake with a silent vibrating alarm. Reminders to move
- 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
Bestseller No. 3
Kissmart Charger for Fitbit Charge HR, Replacement Charging Cable Cord for Fitbit Charge HR (30cm/1ft)
- ▶Compatibility: This charger compatible with Fitbit Charge HR only【NOT compatible with Fitbit Charge/Charge 2/Charge 3/Charge 4/Charge 5/Charge 6】
- ▶Premium & Speedy: The Charge HR charging cable is made of high quality wire, provides a stable performance and a fast charging, about an hour a full charge.
- ▶Safe Protection: The Charge HR charger build-in smart chips, provides a stable charging performance, protecting watch from over-current, over-voltage or short-circuit
- ▶Convenient and Easy to Use: To get a charging just plug it into USB port on your PC, laptop, notebook or use the recommended USB adapter (5V 1A).
- ▶Package includes: 1 x for Charge HR charger cable (wristband is not included). with sincerely after-sales service, if have any question we will deal with it for you within 24 hours.
Fitbit Flex product details
Bestseller No. 1
Fitbit Flex Wireless Activity + Sleep Wristband, Slate, Small/Large
- One syncs automatically and wirelessly to tablets, computers and 150 plus 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. Call notifications via Bluetooth 4.0
- Water Resistance: Charge has been tested up to 1 ATM meaning it is sweat, rain and splash proof. However, the device is not swim proof. We also recommend taking Charge off before showering because, as with any wearable device, it’s best for your skin if the band stays dry and clean
- Warning: Do not use if you have a pacemaker or other internal, or implanted medical device. Not intended for use by children under 13. Always consult your physician. Slippery when wet
- We recommend charging your device every few days to ensure you are always tracking. Charge time: One to two hours. Battery life: up to 7 - 10 days. Battery type: Lithium-polymer
- 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
Bestseller No. 2
Fitbit Inspire 3 Health &-Fitness-Tracker with Stress Management, Workout Intensity, Sleep Tracking, 24/7 Heart Rate and more, Midnight Zen/Black One Size (S & L Bands Included)
- Inspire 3 is the tracker that helps you find your energy, do what you love and feel your best. All you have to do is wear it.Operating temperature: 0° to 40°C
- Move more: Daily Readiness Score(1), Active Zone Minutes, all-day activity tracking and 24/7 heart rate, 20+ exercise modes, automatic exercise tracking and reminders to move
- Stress less: always-on wellness tracking, daily Stress Management Score, mindfulness sessions, relax breathing sessions, irregular heart rhythm notifications(2), SpO2(3), menstrual health tracking, resting heart rate and high/low heart rate notifications
- Sleep better: automatic sleep tracking, personalized Sleep Profile(1), daily detailed Sleep Score, smart wake vibrating alarm, sleep mode
- Comfortably connected day and night: calls, texts & smartphone app notifications(4), color touchscreen with customizable clock faces, super lightweight and water resistant to 50 meters, up to 10 day battery life(5)
Bestseller No. 3
Greeninsync Accessory Band for Flex 2 Fitbit, Replacement for Flex 2 Adjustable Sports Fitness Wristband Strap W/Metal Clasp and Fastener for Flex 2 Smart Watch Small Women Girl(3Pack)
- Unique design，anti-swing and special groove design inside the flex 2 fitness wristband with extra clear silicon fastener ring, double secure to prevent the end of the flex 2 wristband from sliding out
- 3 colors available, black, navy and gray. Personalize your flex 2 Soft wristband to fit your mood and outfits in daily life with this brand new color choices
- The flex 2 adjustable band is made of a flexible, durable material.
- Two sizes available, small size fits for 5.1"-7.0" wrist. Large size fits for 6.1"-8.5" wrist. Please choose the right size while placing replacement bands for flex 2
- Classic and Elegant bands will be one of most excellent gift for yourself, your family and friends
New products & alternatives to the Fitbit Charge HR and the Fitbit Flex
New
Fitbit Inspire 3 Health & Fitness Tracker Bundle - with Stress Management, Workout Intensity, Sleep Tracking, 24/7 Heart + 2 Silicone Bands, 2 Screen Protectors, Cleaning Cloth & Fast Charger
- INSPIRED FITNESS: The Fitbit Inspire 3 is an all in one 24/7 fitness tracker. Track active minutes, fitness exercises, steps, distance, calories, skin temperature, sleep cycles and more. Help optimize your fitness and performance with this easy to use tracker.
- PREMIUM BUNDLE: The Fitbit Inspire 3 watch bundle includes - 1 Fitbit Inspire 3, 2 silicone replacement bands (small and large), 2 screen protectors, a cleaning cloth and fast charger. Unisex design is great for men and women of all ages and activity levels.
- WATER RESISTANT: Enjoy swim proof water resistant use up to 50 meters. Perfect for swimming and tracking laps in the pool or running and dancing in the rain. Full color touchscreen works when dry and when wet.
- STYLISH DESIGN: You'll love the stylish sleek look of the Fitbit Inspire 3. It looks great with all outfits and the low profile design won't get in the way while you work out, run, walk, swim or hike. The Fitbit Inspire 3 bands can be swapped out to mix and match different colors and band lengths.
- WORKS WITH YOUR PHONE: 10 day battery life keeps you connected longer than ever. Enjoy Smart Wake alarm, call, text and app notifications, find my phone, do not disturb and sleep modes. Even make purchases with Fitbit Pay. Works with Apple iOS 15 or higher and Android OS 9 or higher.
New
Fitbit Charge 6 Fitness Tracker (Bundle) – Black/Obsidian – Heart Rate, GPS, Sleep & Stress Tracking + Fast Charger, & Cleaning Cloth (Porcelain)
- COMPLETE ALL-IN-ONE-BUNDLE: Includes Fitbit Charge 6 Black/Obsidian, rapid USB charger, and a premium microfiber cleaning cloth, – everything you need to start tracking in style.
New
Fitbit Inspire 2 Health & Fitness Tracker with 24/7 Heart Rate, Black (Renewed)
- Get call, text, calendar and smartphone app notifications right on your wrist. Notifications and app alerts are available on-device when your phone is nearby
- Earn active zone minutes as you progress toward your weekly 150 minutes of heart-pumping activity and use 20+ exercise modes to track goals like distance, calories burned and more
- Track all-day activity: your steps, distance, hourly activity and calories burned
- Use 24/7 heart rate to track resting heart rate better measure calorie burn
- Enjoy 10 days of battery life for daily progress without constant charging varies with use and other factors
New
Fitbit Luxe Fitness, Activity & Wellness Tracker – Stress, Sleep & 24/7 Heart Rate Monitor, Color Display, Black/Graphite, One Size with Small & Large Bands, Bluetooth for iPhone Android, with Cloth
- Slim, jewelry-inspired design – Ultra-thin fitness and wellness tracker with sleek Black/Graphite finish and bright color display that looks great at work, gym or night out.
- 24/7 heart rate & activity tracking – Monitor heart rate all day, track steps, distance, calories burned and Active Zone Minutes to help you reach your fitness goals.
- Stress & sleep insights – Get stress management tools plus sleep stages and Sleep Score so you can understand your rest quality and build healthier daily routines.
- Smart features you need – Receive call, text and app notifications, set timers and alarms, and sync stats wirelessly to the Fitbit app on compatible iPhone and Android phones.
- Long battery life & water resistant – Up to 5 days of battery life and water resistance to 50m make Luxe perfect for all-day wear, workouts and swimming. Small and large bands included.
New
Fitness Tracker with Step Counter/Calories/Stopwatch, Activity Tracker, Health Tracker with Heart Rate Monitor, Sleep Tracker,1.10''AMOLED Touch Color Screen, Pedometer Watch for Women Men
- 【All-day Activity Tracking】Activity & fitness trackers track all day’s activity including daily steps, calorie consumed, workout distance and time, which help you achieve your fitness goals more efficiently. You can see detailed data on App "Keep Health"
- 【1.10 inch AMOLED HD Touchscreen】 The durable stainless steel frame of C60 pairs flawlessly with the Skin-friendly fitness straps, while its 1.10 inch AMOLED HD Touch Color Screen design and multitude of invigorating watch faces blow you away any moment
- 【5 ATM Waterproof fitness watch 】Designed according to waterproof and dustproof standard, you can wear it when washing hands, taking bath, diving or getting caught in the rain will not damage your watch
- 【25 Professional Sport Modes】 This fitness tracker with 25 sports modes to track the corresponding exercise. It will record your workout time, heart rate, and distance
- 【Smart Functions】An easy-to-use activity fitness tracker with various intelligent features. Including Call & Message Reminder,Remote Photograph, Drink Water Reminder, Sedentary Reminder, Female Health,Family Health, Alarm Clock, Stopwatch, Find Device, etc
Our conclusion on the Fitbit Charge HR vs Fitbit Flex
Both the Fitbit Charge HR and the Fitbit Flex are high quality products and we are sure you will be happy with either one. In the end it comes down to your budget and the value for money you are looking for.
Either way, the Fitbit Charge HR and the Fitbit Flex are both excellent products that will more than do their job!