In 2025, fitness trackers have become more than just step counters. They’re powerful tools for weight loss and overall health management. Whether you’re aiming to shed a few pounds, track calories, or improve daily activity levels, the right tracker can make the journey easier and more effective. From smartwatches to discreet smart rings, today’s devices offer personalized insights that help keep you accountable.
With so many options available, choosing the best fitness tracker for weight loss can feel overwhelming. That’s why we’ve rounded up the top-rated trackers for 2025, tested by experts, and tailored for people who want real results.
What You’ll Learn
What to Look for When Buying a Fitness Tracker for Weight Loss
When your main goal is weight loss, you’ll want a tracker that goes beyond just counting steps. Here are the most important features to consider:
- Calorie & Activity Tracking – Accurate calorie burn estimates keep you on track with your goals.
- Heart Rate Monitoring – Helps measure workout intensity and optimize fat-burning zones.
- Sleep Tracking – Rest and recovery are crucial for metabolism and weight management.
- Daily Movement Reminders – Useful for combating long periods of inactivity.
- Food & App Integration – Syncing with MyFitnessPal, Apple Health, or Google Fit helps manage diet and exercise in one place.
- Battery Life – Longer battery means fewer interruptions.
- Comfort & Wearability – Since you’ll wear it daily, lightweight and comfortable designs are best.
- Budget Range – Decide whether you want an affordable essential tracker or a premium smartwatch with advanced features.
Best Fitness Trackers for Weight Loss in 2025
| Image | Product | Details | Price |
|---|---|---|---|
 | Fitbit Charge 6 | 24/7 heart rate & calorie burn tracking Built-in GPS for outdoor workouts Daily readiness & sleep score | Check Price |
 | Fitbit Inspire 3 | Stress & activity management tools All-day step and calorie tracking Sleep monitoring with insights | Check Price |
 | Amazfit Bip 6 | 120+ sports modes with calorie tracking Built-in GPS for accurate distance 24/7 heart rate & SpO2 monitoring | Check Price |
 | Garmin vívoactive 6 | Advanced fitness & calorie tracking GPS + workout intensity insights Body battery & stress monitoring | Check Price |
 | Garmin vívoactive 5 | Accurate step & calorie burn tracking Built-in workout modes with GPS VO2 max & recovery insights | Check Price |
 | Google Pixel Watch 3 (45mm) | Fitbit-powered calorie & heart rate tracking Built-in GPS + workout tracking Sleep & wellness insights | Check Price |
 | Oura Ring 4 (Rose Gold) | 24/7 calorie & activity tracking Sleep & recovery monitoring Lightweight, wearable design | Check Price |
 | SUUNTO Race S | GPS + calorie burn tracking Training load & recovery metrics 24/7 heart rate monitoring | Check Price |
 | Amazfit Active 2 | Calorie & step tracking with AI coaching 120+ workout modes + GPS Stress & heart rate monitoring | Check Price |
 | Samsung Galaxy Watch 5 (44mm) | Body composition (fat %, muscle, water) GPS + calorie burn tracking Advanced sleep monitoring | Check Price |
Top 10 Picks – Reviews
1. Fitbit Charge 6 Activity Tracker Heart Rate Monitoring
Best For: All-around weight loss tracking with heart rate precision
Rating: 9.2/10
Reason: Combines calorie burn accuracy, heart rate monitoring, and lifestyle integration at an affordable price.
Product Overview
The Fitbit Charge 6 is Fitbit’s most advanced activity tracker, designed with Google integration for better accuracy and usability. It features 40+ exercise modes, heart rate tracking, and compatibility with YouTube Music, Google Maps, and Wallet. With a slim design and week-long battery life, it’s one of the best trackers for weight loss in 2025.
Expert Review
In our daily use, the Fitbit Charge 6 proved extremely helpful for weight loss management. Its improved heart rate sensor was more accurate during cardio and HIIT, which allowed us to stay within fat-burning zones. The calorie burn data was reliable and helped us adjust nutrition accordingly. The addition of Google Maps and Wallet was surprisingly useful for everyday convenience.
- Highly accurate heart rate tracking
- Lightweight and comfortable for 24/7 wear
- Integration with Google apps (Maps, Wallet, YouTube Music)
- Excellent sleep and recovery insights
- Affordable compared to premium smartwatches
- No third-party app support outside Google ecosystem
- Small screen compared to smartwatches
- Requires Fitbit Premium subscription for advanced insights
Wear the Fitbit Charge 6 all day and during workouts. Use the Active Zone Minutes feature to track time in fat-burning and cardio zones. Sync with MyFitnessPal for food logging and combine with Fitbit’s calorie burn data for effective weight management.
2. Fitbit Inspire 3 Health & Fitness Tracker with Stress Management
Best For: Beginners and lifestyle-focused weight loss
Rating: 8.8/10
Reason: Affordable, simple, and effective for tracking daily activity, calories, and stress.
Product Overview
The Fitbit Inspire 3 is a budget-friendly tracker designed to cover the basics of health and fitness. It includes heart rate monitoring, calorie tracking, sleep stages, and stress management tools—all in a slim, lightweight design.
Expert Review
We found the Inspire 3 ideal for beginners who want to lose weight without investing in a premium smartwatch. It’s very lightweight and comfortable, so you barely notice wearing it. The calorie burn estimates and step tracking were consistent in our tests. Stress management features, like guided breathing, are a bonus for overall health.
- Very lightweight and stylish
- Affordable entry-level option
- Reliable step and calorie tracking
- Stress management tools for holistic health
- Long battery life (up to 10 days)
- No built-in GPS (requires phone)
- Lacks advanced performance metrics
- Small screen may feel limiting
Track steps, calories, and heart rate daily. Use the stress management reminders to avoid emotional eating. Pair with Fitbit’s app for food and weight tracking to stay accountable.
3. Amazfit Bip 6 Smart Watch 46mm
Best For: Long battery life and budget-friendly weight loss support
Rating: 8.6/10
Reason: Affordable smartwatch with extended battery life and solid calorie tracking.
Product Overview
The Amazfit Bip 6 is known for its exceptional battery life (up to 14 days), making it one of the most practical trackers for daily weight loss monitoring. It includes heart rate, SpO2, sleep tracking, and over 120 workout modes.
Expert Review
We loved using the Bip 6 for everyday fitness tracking. It may not have premium polish like Garmin or Fitbit, but it’s reliable and extremely budget-friendly. During our tests, calorie burn tracking was consistent, and the built-in GPS worked well for outdoor workouts.
- Excellent 14-day battery life
- Affordable price point
- Built-in GPS for running and walking
- Large display for easy reading
- Covers all basics: calories, sleep, HR, SpO2
- App ecosystem is limited compared to Fitbit/Apple/Google
- Accuracy slightly below Garmin during intense workouts
- Bulkier than Fitbit Inspire 3
Use built-in GPS for outdoor runs/walks to calculate calories burned. Monitor daily activity levels and sleep recovery. Sync data with Zepp app for trend analysis and goal setting.
4. Garmin vívoactive® 6
Best For: Serious fitness and weight loss enthusiasts
Rating: 9.4/10
Reason: Premium smartwatch with advanced performance metrics, calorie burn accuracy, and excellent health insights.
Product Overview
The Garmin vívoactive 6 is a high-end GPS smartwatch featuring VO2 max, heart rate variability, stress tracking, sleep analysis, and body battery monitoring. With advanced workout analytics and accurate calorie burn, it’s built for fitness enthusiasts who take weight loss seriously.
Expert Review
The vívoactive 6 impressed us with its precision. Its GPS and heart rate monitoring were the most accurate we tested, making it excellent for weight loss through structured training. The body battery feature was also valuable, it helped us avoid overtraining and stay consistent.
- Extremely accurate calorie and heart rate tracking
- Advanced health and training metrics
- Built-in GPS and over 30 activity modes
- Stylish design with bright AMOLED display
- Garmin Connect app is detailed and motivating
- Higher price point
- Requires learning curve for beginners
- Battery life (8 days) shorter than Amazfit
Set daily calorie burn and step goals using Garmin Connect. Use HR zones for fat-burning workouts, and review VO2 max trends for improved cardio fitness. Ideal for runners and gym-goers.
5. Garmin vívoactive 5
Best For: Balanced weight loss tracking with lifestyle features
Rating: 9/10
Reason: Slightly more affordable than vívoactive 6, still powerful for fitness and weight management.
Product Overview
The Garmin vívoactive 5 offers many of the same features as the vívoactive 6 but at a more approachable price. It includes GPS, HR monitoring, stress tracking, and strong workout support—making it a solid mid-range weight loss tracker.
Expert Review
In our experience, the vívoactive 5 provided reliable calorie burn and activity tracking, with enough advanced metrics to support serious weight loss goals. It’s not quite as polished as the vívoactive 6, but still among the best trackers for those who want high accuracy without the premium cost.
- Reliable GPS and HR accuracy
- Strong balance of features and price
- Sleep, stress, and recovery tracking
- Garmin Connect app for detailed data
- Fewer advanced metrics than vívoactive 6
- Battery life shorter than Amazfit Bip 6
- Premium price compared to Fitbit
Track calorie burn through daily activities and cardio. Use Garmin’s guided workouts for structure and monitor stress levels to support sustainable weight loss.
6. Google Pixel Watch 3 (45mm) Latest Model
Best For: Weight loss with AI-driven insights and premium smartwatch features
Rating: 9.2/10
Reason: Combines Fitbit’s proven health tracking with Google AI for smarter weight management.
Product Overview
The Google Pixel Watch 3 is the latest smartwatch from Google, designed with Fitbit’s advanced tracking and Google AI coaching. It includes continuous heart rate monitoring, calorie burn tracking, sleep analysis, stress insights, and full integration with Google services like Maps, Wallet, and Assistant.
Expert Review
We tested the Pixel Watch 3 as part of our daily routine, and it stood out for AI-driven health coaching. The calorie burn accuracy was excellent, and the watch automatically detected workouts like running or cycling. Its integration with Fitbit Premium gave us advanced insights into weight loss trends, while Google Assistant made it a great everyday smartwatch.
- Combines Fitbit tracking with Google AI coaching
- Sleek AMOLED display, premium design
- Excellent calorie and heart rate accuracy
- Seamless integration with Google ecosystem
- Smartwatch features (calls, texts, apps)
- Requires Fitbit Premium for full benefits
- Battery life (up to 24 hours) is shorter than Garmin/Amazfit
- On the higher end price-wise
Use the Fitbit app with AI coaching to set calorie and activity goals. Track daily steps, workouts, and sleep recovery. Sync nutrition data for precise weight management.
7. Oura Ring 4 – Rose Gold – Size 7 – Smart Ring
Best For: Weight loss through recovery and lifestyle tracking
Rating: 9/10
Reason: Ultra-discreet tracker focusing on sleep, readiness, and metabolism.
Expert Review
We wore the Oura Ring 4 daily and found it incredibly comfortable, even during sleep. While it’s not a workout-focused tracker, it’s excellent for managing weight through recovery and metabolism insights. Its readiness score helped us know when to train harder or rest, preventing burnout.
- Ultra-discreet design (wear anywhere)
- Excellent sleep and recovery tracking
- Long battery life (up to 7 days)
- Lightweight and waterproof
- Detailed readiness insights
- No display (requires phone app)
- Limited workout tracking vs. watches
- Premium subscription for detailed data
Focus on readiness and recovery scores to balance workouts and rest. Use calorie burn estimates and combine with proper nutrition logging. Great for those who want a recovery-first approach to weight loss.
8. SUUNTO Race S GPS Sports Watch
Best For: Athletes focusing on structured training and calorie burn
Rating: 8.8/10
Reason: High-performance watch with advanced workout tracking and precise GPS.
Expert Review
During our test, the SUUNTO Race S excelled in outdoor training sessions like long runs and cycling. GPS accuracy was spot-on, and calorie burn estimates were reliable. While it lacks some lifestyle features (like stress tracking), it’s a powerhouse for training-focused weight loss.
- Extremely accurate GPS
- Multi-sport support for serious athletes
- Strong durability for outdoor use
- Good calorie burn tracking during workouts
- Long battery life (up to 12 days in smartwatch mode)
- Fewer lifestyle/holistic health features
- Bulkier design compared to Fitbit/Oura
- App interface less user-friendly than Garmin/Google
Best for structured training plans use GPS to log runs/walks and monitor calorie burn. Review performance metrics weekly to optimize fat loss workouts.
9. Amazfit Active 2 Sport Smart Watch Fitness Tracker
Best For: Budget-friendly, versatile weight loss tracking
Rating: 8.6/10
Reason: Affordable smartwatch with broad health tracking features and stylish design.
Expert Review
We found the Amazfit Active 2 surprisingly capable for its price. The calorie burn and step tracking were reliable, and the workout modes covered almost everything we tested—from walking and HIIT to yoga. It’s a great pick for anyone starting their weight loss journey.
- Affordable and stylish design
- 120+ workout modes
- 14-day battery life
- Strong health metrics for price range
- Lightweight and comfortable
- Data accuracy slightly lower than Garmin/Fitbit
- Limited third-party app support
- Some metrics locked to Zepp app
Set activity goals in the Zepp app and track calories burned per workout. Use daily stress and sleep tracking to support balanced weight loss.
10. SAMSUNG Galaxy Watch 5 44mm Bluetooth Smartwatch
Best For: Balanced smartwatch and weight loss tracking
Rating: 9.2/10
Reason: Combines lifestyle smartwatch features with advanced body composition analysis.
Expert Review
We tested the Galaxy Watch 5 extensively and loved its body composition scanner, which gave us insights into fat percentage, skeletal muscle, and water balance. This is extremely helpful for weight loss beyond just calories burned. Its integration with Samsung Health was seamless.
- Unique body composition (BIA) feature
- Excellent AMOLED display
- Strong fitness and lifestyle integration
- Reliable calorie and HR accuracy
- WearOS supports tons of apps
- Battery lasts only 1–2 days
- Works best with Samsung phones
- Heavier than Fitbit or Amazfit trackers
How to Use for Weight Loss:
Track calorie burn, steps, and body composition weekly. Use Samsung Health weight management features to log nutrition and align with calorie burn for optimal results.
Buyer’s Guide: How to Choose the Fitness Tracker
Losing weight isn’t just about hitting the gym it’s about tracking your activity, sleep, calorie burn, and recovery consistently. The right fitness tracker will help you stay accountable, highlight progress, and reveal habits that may be holding you back. Here’s what to consider before buying:
Not every tracker needs to break the bank. Choose based on your goals and lifestyle:
- Budget-Friendly Trackers (Fitbit Inspire 3, Amazfit Active 2)
- Perfect if you’re just starting your weight loss journey.
- Track steps, calories, and sleep without extra bells and whistles.
- Mid-Range Options (Fitbit Charge 6, Amazfit Bip 6, Samsung Galaxy Watch 5)
- Best for people who want advanced features like heart rate zones and stress monitoring without paying premium prices.
- Balance of accuracy + affordability.
- Premium Picks (Garmin vívoactive 6, Oura Ring 4, Google Pixel Watch 3)
- Ideal for serious fitness enthusiasts.Offer deep analytics, recovery insights, AI-driven coaching, or unique features like body composition (Galaxy Watch 5) and readiness scoring (Oura Ring).
2. Must-Have Features for Weight Loss
When your goal is fat loss, look for these features:
- Calorie & Activity Tracking – Essential for understanding daily energy burn.
- Heart Rate Monitoring & Zones – Optimizes workouts for fat-burning intensity.
- Sleep Tracking – Recovery plays a big role in metabolism and appetite regulation.
- Body Composition Analysis – Some trackers (Samsung Galaxy Watch 5) show fat %, water, and muscle mass.
- Stress & Recovery Insights – Stress can hinder fat loss; devices like Fitbit Inspire 3 and Oura Ring track this.
- Battery Life – A tracker that dies every day won’t help you stick with your goals. Look for at least 5+ days unless you need a smartwatch with daily charging.
- Amazon – Great for discounts, bundles, and fast delivery.
- Official Brand Websites – Often include warranties, exclusive colors, or trade-in deals.
- Trusted Fitness Retailers – Stores like Best Buy or specialist fitness shops can provide in-person guidance.
A fitness tracker is an investment in your health, so look for brands with strong after-sales support:
- Fitbit, Garmin, and Samsung: Regular software updates and at least 1-year warranties.
- Oura Ring: Known for premium customer support and replacement guarantees.
- Garmin: Industry leader in durability and long-term performance.
Fitness Tips Expert’s Advice: If your goal is purely weight loss, prioritize accuracy in calorie and heart rate tracking. But if you also want long-term health insights, go for a tracker with sleep, stress, and body composition features.
Final Words
Losing weight isn’t just about working harder—it’s about working smarter. The best fitness tracker for weight loss helps you measure progress, stay consistent, and get actionable insights into your daily habits.
Whether you want an affordable step counter or a premium smartwatch with body composition tracking, there’s an option here to fit your goals. Choose one that fits your lifestyle, and it will become your most valuable partner in your weight loss journey.
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FAQs
The Samsung Galaxy Watch 5 and Fitbit Charge 6 are excellent picks thanks to their calorie tracking and health-focused features.
Yes. By tracking calorie burn, steps, and heart rate, they provide data to stay accountable and optimize fat-burning workouts.
The Fitbit Inspire 3 and Amazfit Active 2 are affordable yet reliable for calorie and activity tracking.
They use heart rate, movement data, and personal stats (weight, height, age) to estimate energy expenditure.
The Oura Ring 4 and Fitbit Inspire 3 provide in-depth sleep analysis that supports weight management.
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