Last Updated & Fact Checked: March 21, 2026
Are you trying to decide between the Fitbit Flex 2 and the Jawbone UP3?
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 Flex 2 or the Jawbone UP3 – and find out exactly what the differences are.
Both the Fitbit Flex 2 and the Jawbone UP3 are quality products, so read on to find out which one is best for your needs!
Fitbit Flex 2 quick facts
Jawbone UP3 quick facts
Fitbit Flex 2 product details
Bestseller No. 1
Fitbit Flex 2, Black (US Version), 1 Count
- Track steps, distance, calories burned and active minutes. LED display lights up to show progress toward your daily goal
- Ultra-thin, removable tracker hides in bands, pendants and bangles
- Swim proof for tracking, swimming, life proof for wear in the ocean, shower, pool and beyond
- SmartTrack automatically recognizes select workouts and records them to your Fitbit app
- Get call and text notifications on your wrist with unique vibration patterns and color-coded LED lights
Bestseller No. 2
EXMRAT Charger Cable for Fitbit Flex 2, USB Charger Charging Cable for Fitbit Flex 2 (2Pack, 30cm/1ft)
- Replacement Charger Cable For Fitbit Flex 2 (with Reset Button ), Not compatible with Fitbit Flex.
- Cable length : 30cm/1ft. Easy plug and charge..
- High Quality - Over Voltage Protection, Over Current Protection.
- Compact and Lightweight Design - Convenient for travelers and business users
- Package included: 2 x Fitbit Flex 2 charger ( watch was not included )
Bestseller No. 3
Greeninsync Compatible with Fitbit Bands for Flex 2, Adjustable Soft Silicone Sports with Fastener Clasp Fitness Replacement Wristband Strap for Fitbit Flex 2 Smart Watch Large(3Pack)
- Unique design，anti-swing and special groove design inside the flex 2 replacemet strap 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 classic band 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 flex 2 watch band
- Classic and Elegant bands will be one of most excellent gift for yourself, your family and friends
Jawbone UP3 product details
Bestseller No. 1
Amazfit Helio Strap Fitness Tracker Wristband, 24/7 Activity & Sleep Tracker with Heart Rate, 10 Days Battery, 27 Sports Modes, Strength Training, Hyrox Race, Subscription Free for Android & iPhone
- Recovery, Redesigned: Train, sleep, and rest with confidence thanks to accurate heart rate, fatigue, and recovery tracking. When worn together with an Amazfit smartwatch, both devices work together with the Zepp App to capture uninterrupted data - whether you're wearing both, or one at a time.
- Up to 10 Days of Battery Life: Go longer between charges. The Helio Strap delivers lasting performance to keep up with your training and recovery - day and night.
- 24/7 Advanced Health Tracking: Get pinpoint heart rate data while training, and stay informed all day with continuous monitoring of heart rate, blood-oxygen, stress, and sleep
- Optimized for Strength & HYROX Training: Track reps, sets, and rest periods with precision in the gym. The exclusive HYROX Race mode offers tailored support for race prep.
- 27 Sports Modes & Post-Workout Insights: Unlock sport-specific tracking and performance analysis including VO₂ max, training load, effect, and recovery time - all through the Zepp App.
Bestseller No. 2
Fitbit Flex 2, Black (US Version), 1 Count
- Track steps, distance, calories burned and active minutes. LED display lights up to show progress toward your daily goal
- Ultra-thin, removable tracker hides in bands, pendants and bangles
- Swim proof for tracking, swimming, life proof for wear in the ocean, shower, pool and beyond
- SmartTrack automatically recognizes select workouts and records them to your Fitbit app
- Get call and text notifications on your wrist with unique vibration patterns and color-coded LED lights
Bestseller No. 3
Jawbone Jambuds Wireless Bluetooth Earbuds - Bluetooth 5.3 True Active Noise Cancelling Earbuds with Case for Charging - 10mm Drivers with Big Bass - Water-Resistant in Ear Earphones for Android iOS
- SUPERIOR SOUND PERFORMANCE - Enjoy pure bass audio with a 10mm driver and a frequency response range of 20Hz-20kHz with Active Noise Cancellation. Whether you're jamming out to songs or taking a call, expect crystal clear sound and zero interruptions with these wireless earbuds.
- ORGANIC ELEGANCE - Style meets function with the Jawbone Jambuds case, inspired by traditional Japanese tatami mats. This sleek case offers six full recharges for your TWS Bluetooth earbuds and features a textured fabric body with a magnetic clasp for a secure, satisfying snap every time you open or close it.
- BLUETOOTH 5.3 WIDE COMPATIBILITY - Enjoy a faster, more reliable connection with our Bluetooth ear buds. Experience seamless pairing and low latency for smooth, uninterrupted audio. Whether you’re at home, work, or on the move, stay effortlessly connected to your devices.
- YOUR EVERYDAY COMPANION - Designed for life on the move, these headphone earbuds are comfortable enough for all-day wear and boast an IPX4 rating, making them resistant to sweat and rain. Stay aware of your surroundings, just switch to ambient mode and stay connected without missing a beat.
- QUICK CHARGE, LONG-LASTING PLAY - Get back to your music faster with a quick 1.5-hour charge for the case and just 1 hour for the wireless buds. The Jambuds have a 4 hours battery life and the case offers six full recharges, perfect for those on the go, ensuring you never miss a beat and always stay connected.
New products & alternatives to the Fitbit Flex 2 and the Jawbone UP3
New
MorePro Smart Watch (Answer/Make Call), 1.83” Health Fitness Watch with Heart Rate, Blood Pressure,SpO2 and Sleep Monitor, 100+ Sports Modes, IP68 Waterproof Fitness Tracker for Men Women
- 24/7 Health Monitoring: Stay connected to your wellness with advanced fitness tracker sensors for heart rate, SpO₂, blood pressure, stress, sleep, and women’s health. This activity tracker smartwatch provides round-the-clock insights to help you live smarter and healthier. (Not a medical device.)
- 120+ Sports Modes: Power your performance with 100+ sports modes—running, cycling, basketball, yoga, and more. Track calories, steps, distance, and duration in real time. This health fitness watch keeps up with your workouts indoors and outdoors, boosting motivation and results.
- Dynamic Expressions & Custom Faces: Make fitness fun again! Each time you wake the screen, this smart fitness tracker displays one of nine animated expressions—playful and full of personality. Customize your watch face with photos and control music, camera, and alarms right from your wrist.
- 1.83” Full Touch Display: Enjoy stunning clarity on the 1.83” full-touch screen fitness tracker. Every fitness stat, message, and call detail appears bright and easy to read—even in sunlight. Smooth touch response and vivid colors make this smart watch for men and women a joy to use every day.
- Bluetooth Calls & Smart Notifications: Stay hands-free and connected. Make and answer Bluetooth calls directly on your smartwatch, plus receive call, text, and social media alerts (Facebook, WhatsApp, Instagram, Snapchat, etc.). A perfect Bluetooth call smartwatch for work, travel, and workouts.
New
Osawalla 2026 Latest Screenless Fitness Tracker Band, Activity & Sleep Tracking Wearable with App Sync, Lightweight Waterproof Fitness Band for Men and Women (Black)
- SCREENLESS FITNESS TRACKER BAND.Minimalist fitness tracker band designed to track daily movement and activity automatically — no screen, no notifications, just focused tracking for everyday fitness routines.
- ACTIVITY & STEP TRACKING.Records steps, daily movement, and workout activity throughout the day, working as a simple pedometer-style activity tracker for consistent daily use.
- SLEEP TRACKING FOR DAILY ROUTINE.Tracks sleep duration and sleep patterns through the companion app, helping you better understand how rest fits into your daily routine.
- LIGHTWEIGHT FITNESS BAND FOR ALL-DAY WEAR.Soft, lightweight fitness band built for 24/7 wear — comfortable for workouts, work, and sleep without the bulk of a fitness watch.
- WATERPROOF WEARABLE WITH APP SYNC.Water-resistant wearable that syncs with a mobile app to view activity and sleep data. Long battery life supports continuous tracking with fewer recharges.
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 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 Sense 2 Advanced Health and Fitness Smartwatch with Tools to Manage Stress and Sleep, ECG App, SpO2, 24/7 Heart Rate and GPS, Shadow Grey/Graphite, One Size (S & L Bands Included) (Renewed)
- Learn to manage stress, sleep better and live healthier with Sense 2—our most advanced health and fitness smartwatch.Human Interface Input: Touchscreen
- Manage stress and live healthier: all-day stress detection with cEDA and daily Stress Management Score, ECG app for atrial fibrillation assessment(1), irregular heart rhythm notifications(2), SpO2(3), health metrics dashboard(4), mindfulness content
- Measure and improve sleep quality: personalized Sleep Profile(5), daily sleep stages & Sleep Score, smart wake alarm and do not disturb mode
- Enhance activity: built-in GPS and workout intensity map, Daily Readiness Score(5), Active Zone Minutes, all-day activity tracking and 24/7 heart rate, 40+ exercise modes and automatic exercise tracking, water resistant to 50 meters
- Designed for all-day wear: on-wrist Bluetooth calls, texts and phone notifications(6), customizable clock faces, Fitbit Pay(7), Amazon Alexa built-in(8), Google Wallet & Maps (Google Maps on Android only, coming Spring 2023 to iOS), 6+ day battery(9)
Our conclusion on the Fitbit Flex 2 vs Jawbone UP3
Both the Fitbit Flex 2 and the Jawbone UP3 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 Flex 2 and the Jawbone UP3 are both excellent products that will more than do their job!