If you’re serious about your workouts, a reliable smartwatch with fitness tracking features can make all the difference. I still remember my first fitness smartwatch, it was clunky, slow, and far from accurate. Fast forward to 2025, smartwatch and fitness trackers have evolved into powerful devices that track your heart rate, recovery, GPS runs, and even sleep with precision. With so many options out there, choosing a smartwatch for fitness tracking can feel overwhelming. Brands like Garmin, Apple, Samsung, and Fitbit now offer models tailored to runners, swimmers, and everyday fitness fans. In this guide, I’ll cut through the noise and highlight the top picks to help you find the one that fits your goals.
OUR TOP PICKS
BEST OVERALL
Garmin Venu 3
A balanced smartwatch for fitness tracking that nails accuracy, battery life, and versatility. With advanced health insights, recovery coaching, and up to 14 days of battery, the Venu 3 is perfect if you want pro-level tracking without overspending.
BEST PREMIUM
Apple Watch Ultra 2
A rugged smartwatch with fitness tracking features built for athletes and adventurers. With dual-frequency GPS, dive-ready water resistance, and Apple’s polished ecosystem, the Ultra 2 packs pro-level features into a durable titanium case.
BEST BUDGET
Amazfit Active 2
THE Budget smartwatch for fitness tracking that doesn’t skimp on essentials. With heart rate and SpO₂ monitoring, built-in sports modes, and a bright display, it’s a solid entry-level choice for budget-conscious fitness fans.
Best Overall Fitness Smartwatch: Garmin Venu 3
If I had to recommend just one smartwatch for fitness tracking right now, it would be the Garmin Venu 3. Designed for people who want reliable training insights without the bulk or steep price of Garmin’s adventure models, it delivers accuracy in heart rate, GPS, and recovery data you’d normally expect from the higher-end Fenix line, but in a sleeker design. Compared to cheaper alternatives, the Venu 3 offers deeper training metrics and a battery that lasts up to 14 days. And while it doesn’t integrate with iOS as seamlessly as an Apple Watch, it makes up for it with endurance and data people can actually use.
TODAY'S BEST DEALS
Why It Stands Out
Accurate training data: Heart rate tracking on the Venu 3 is among the most precise for a wrist-based watch, closely matching chest strap results during runs, HIIT, and strength training.
Recovery and readiness tools: Its Body Battery, sleep tracking (including naps), and recovery coaching functions help you decide when to push harder and when to rest.
Bright AMOLED display: Easy to read indoors or under direct sunlight, so you can glance at stats mid-run without breaking stride.
Long Lasting Battery: Up to 14 days in smartwatch mode means less charging and more focus on training.
Versatility across sports – With 30+ built-in workout modes, from running and cycling to yoga and strength, it adapts to almost any fitness routine.
Cross-platform friendly – Works with both iOS and Android, so you’re not locked into one ecosystem.
REASONS TO BUY ✅
- AMOLED touchscreen display
- Long battery life
- Accurate heart rate sensor
- Sleep & recovery recommendation
REASONS TO AVOID ❌
- You only need basic tracking
- Prefer slimmer fitness band
- Native Apple pairing is important
The bottom line
The Garmin Venu 3 is the ideal middle ground between budget trackers and ultra-premium watches. With accurate fitness data, recovery coaching, and a battery that outlasts most competitors, it gives you everything you need to train smarter without overpaying. For anyone looking for a reliable, everyday smartwatch for fitness tracking, this is the one to beat.
Best Premium Smartwatch: Apple Watch Ultra 2
The Apple Watch Ultra 2 is Apple’s most advanced smartwatch with fitness tracking to date (Ultra 3 is coming out in Sepetember), it combines a rugged titanium design with pro-level features like dual-frequency GPS, advanced running metrics, and dive-ready water resistance. While it costs more than balanced options like the Garmin Venu 3, the Ultra 2 provides unmatched integration for iPhone users and a vibrant display that’s hard to beat outdoors.
TODAY'S BEST DEALS
Why It Stands Out
- Dual-frequency GPS: Delivers highly accurate tracking for runs, hikes, and open-water swims, even in dense cities or under tree cover.
- Advanced workout metrics: Real-time running power, stride length, and ground contact time help fine-tune performance.
- Dive-ready durability: Water-resistant to 100m and compatible with dive apps like Dive+.
- Rugged titanium build: Tough enough for outdoor sports.
- Bright Retina display: Up to 3,000 nits for clear visibility in sunlight.
- iPhone integration: Native syncing with Apple Health, iOS apps, and safety features like SOS and fall detection.
REASONS TO BUY ✅
- Ultra-accurate dual-frequency GPS
- Advanced running metrics
- 100m water resistance certified
- Native iPhone integration
REASONS TO AVOID ❌
- Bulky for smaller wrists
- Premium Price
- No Android compatibility
The bottom line
The Apple Watch Ultra 2 is the one if you want a rugged, feature-packed smartwatch with fitness tracking that integrates seamlessly with your iPhone. With the best GPS accuracy, advanced training metrics, and dive-ready durability possible. Yes, it’s bulkier and pricier than most watches, but if you’re serious about performance and already in the Apple ecosystem, this is the premium smartwatch to get.
Best Budget Smartwatch: Amazfit Active 2
The Amazfit Active 2 proves you don’t need to spend big for reliable fitness tracking. Priced under $150, it offers features you’d expect from pricier models, like heart rate and SpO₂ monitoring, built-in sports modes, and a bright AMOLED display. While it doesn’t offer too many advanced features, it delivers all the essentials for everyday fitness at a fraction of the cost.
TODAY'S BEST DEALS
Why It Stands Out
- Accurate heart rate monitoring: Reliable enough for gym sessions, runs, and daily activity.
- SpO₂ and sleep tracking: Covers key health basics.
- Built-in sports modes: Supports a wide variety of workouts right out of the box.
- Bright AMOLED display: Clear and colorful.
- Lightweight, comfortable design: Easy to wear all day.
- Affordable price point: Delivers solid value under $150.
REASONS TO BUY ✅
- Affordable under $150
- Accurate heart rate tracking
- SpO₂ and sleep monitoring
- Bright, colorful AMOLED display
- Lightweight, all-day comfort
REASONS TO AVOID ❌
- No advanced training metrics
- Limited third-party app support
- Less accurate GPS outdoors
- Shorter software update lifespan
The bottom line
The Amazfit Active 2 is a standout pick for budget-conscious buyers who still want a capable smartwatch for fitness tracking. It nails the essentials: heart rate, SpO₂, sleep tracking, sports modes, and a bright AMOLED screen, all for under $150. While it won’t give you the advanced metrics other more advanced smartwatches provide, it’s a reliable entry point for anyone starting out without overspending.
Best for Android Users: Samsung Galaxy Watch 8
The Samsung Galaxy Watch 8 is the go-to smartwatch with fitness tracking features for Android users in 2025. It blends sleek design with one of the most comprehensive health and fitness suites available on Wear OS. From accurate heart rate and sleep tracking to over 100 workout modes and AI coaching, it covers both casual fitness needs and more advanced training. While it doesn’t reach Garmin-level battery life, it’s the best all-rounder for anyone in the Android ecosystem.
TODAY'S BEST DEALS
Why It Stands Out
- Body composition analysis: Tracks muscle, fat, and water levels.
- AI Coaching: Offers personalized workout and sleep guidance.
- Accurate heart rate tracking: Reliable even during high-intensity training.
- 100+ workout modes: Automatically detects popular activities.
- Detailed sleep insights: Breaks down stages and snoring detection.
- Seamless Android integration: Works across Android systems.
REASONS TO BUY ✅
- Accurate heart rate tracking
- AI fitness and sleep coaching
- 100+ auto workout modes
- Body composition measurement
- Seamless Android integration
REASONS TO AVOID ❌
- Best features Samsung-only
- Shorter 26-hour battery life
- Bulkier than slim trackers
- No iOS support
The bottom line
The Samsung Galaxy Watch 8 is the best smartwatch for fitness tracking if you’re an Android user. With accurate heart rate monitoring, AI coaching, a wide variety of workout modes, and even body composition analysis, it’s packed with tools and features. Battery life isn’t as strong as Garmin’s, and some features are Samsung-only, but if you want the most complete fitness-focused smartwatch for Android, this is the one to get.
Best for Runners: Garmin Forerunner 265
The Garmin Forerunner 265 is the top smartwatch for fitness tracking if running is your main sport. It delivers pro level GPS accuracy, advanced running metrics, and a lightweight, comfortable design built for long running sessions. While it doesn’t have the premium mapping of the Forerunner 965, it hits the sweet spot for runners who want serious data without overpaying.
TODAY'S BEST DEALS
Why It Stands Out
- Bright AMOLED display: Easy to read splits mid-run, even in sunlight.
- Accurate GPS tracking: Locks quickly and stays precise on city streets or trails.
- Advanced running metrics: Includes running power, cadence, and training readiness score.
- Lightweight, comfortable design: Built for long runs without wrist fatigue.
- Training readiness score: Tells you if your body’s primed for speed work or recovery.
- Strong battery life: Up to 15 days in smartwatch mode, 20+ hours with GPS.
REASONS TO BUY ✅
- Accurate dual-band GPS
- Advanced running metrics
- Lightweight, comfortable design
- Long GPS battery life
- Training readiness insights
REASONS TO AVOID ❌
- No full offline maps
- Bulkier than other slim trackers
- Limited smartwatch app features
- Higher price than basics
The bottom line
The Garmin Forerunner 265 is the best smartwatch for fitness tracking if running is your priority. With pinpoint GPS accuracy, advanced running metrics like power and cadence, and a lightweight design, it’s built to help you train smarter and race faster. While it lacks the full mapping feature in models such as the Forerunner 965, its balanced mix of features and value make it the go-to choice for most runners.
Best for Apple Users: Apple Watch Series 10
If you use an iPhone, you want a smartwatch with fitness tracking that not only track your workouts accurately but also integrates tightly with iOS. My top pick here is the Apple Watch Series 10, it brings balance between design, health and fitness features, and the perks of Apple’s ecosystem. It’s more premium than budget alternatives, but gives you more seamless utilities than most non-Apple options.
TODAY'S BEST DEALS
Why It Stands Out
- Bright always-on Retina display : Easy to read in direct sunlight.
- Advanced health sensors: Tracks heart rate, ECG, SpO₂, heart rate variability (HRV), and skin temperature trends.
- Reliable GPS accuracy: Great for outdoor runs and cycling routes.
- watchOS 26 fitness upgrades: New coaching tools and recovery insights.
- Premium design and build: Water-resistant, durable, and sleek enough for daily wear.
REASONS TO BUY ✅
- Seamless iPhone integration
- Advanced health monitoring sensors
- Bright always-on Retina display
- New watchOS 26 fitness tools
REASONS TO AVOID ❌
- Daily charging required
- Pricer compared to other brands
The bottom line
The Apple Watch Series 10 is the best smartwatch with fitness tracking for iPhone users. It combines seamless iOS integration, advanced health sensors (including heart rate variability tracking on Apple Watch), and new fitness tools in watchOS 26, all wrapped in a pleasing design. It is easily one of the best options for anyone who’s looking for a fitness smartwatch with native iOS support without the premium price tag of models such as Apple Watch Ultra 2.
Best for Swimmers: Garmin Forerunner 965
The Garmin Forerunner 965 is one of the most advanced smartwatches for fitness tracking and an excellent choice for swimmers. It blends accurate swim tracking with multisport features that make it especially valuable for swimmers. With its bright AMOLED display, waterproof design, and open-water GPS, it’s built for both pool training and ocean swims.
TODAY'S BEST DEALS
Why It Stands Out
- Pool & open-water modes: Tracks laps, stroke type, SWOLF, drills, and pace.
- Accurate GPS in water: Reliable route tracking for open-water swims.
- Triathlon-ready: One-button transitions between swim, bike, and run.
- AMOLED display: Bright, colorful, and easy to see mid-swim.
- Long battery life: Up to 23 days in smartwatch mode, 31 hours GPS.
- Lightweight build: More comfortable than bulkier multisport watches like the Fenix line.
REASONS TO BUY ✅
- Accurate pool and open-water tracking
- Triathlon and multisport support
- Bright AMOLED screen visibility
- Excellent GPS and battery
REASONS TO AVOID ❌
- Higher Price Tag
- Can be a bit bulky
The bottom line
The Garmin Forerunner 965 is one of the best choice for swimmers who also want multisport capability. Its combination of accurate swim metrics, open-water GPS, and triathlon features makes it perfect for athletes training across disciplines. While slightly pricier, its versatility and performance justify the cost for serious swimmers and endurance athletes.
Frequently asked questions
What does a smartwatch or fitness tracker actually track?
A smartwatch and fitness tracker typically tracks heart rate, steps, calories burned, and distance traveled using built-in sensors. More advanced models also measure sleep quality, blood oxygen (SpO₂), VO₂ max, and even stress levels using heart rate variability (HRV). Some, like Garmin or Apple, also provide training readiness and recovery insights.
What’s the tech inside a smartwatch or fitness tracker?
Most smartwatches and fitness trackers use biometric sensors like optical heart rate monitors, accelerometers, and SpO₂ sensors to track activity and health. Higher-end models also measure heart rate variability (HRV), VO₂ max, and skin temperature, giving deeper insights into recovery, stress, and overall fitness.
Smartwatch vs fitness tracker: which is better?
A smartwatch typically offers more features like notifications, apps, and GPS, while a fitness tracker is smaller, cheaper, and focused mainly on steps, heart rate, and sleep. If you want a simple device for daily activity, a tracker works, but if you want advanced health metrics and smart features, go for a smartwatch.
How accurate are smartwatches for tracking fitness?
Smartwatches are quite accurate for heart rate monitoring, GPS runs, and sleep tracking, but calorie burn estimates can vary. Brands like Garmin are often more precise for outdoor workouts, while Apple and Samsung excel at overall lifestyle integration.
Does the Apple Watch measure heart rate variability?
Yes, the Apple Watch Series 10 and Ultra models track heart rate variability (HRV) in the Health app. This metric helps you understand recovery, stress, and overall cardiovascular fitness. Many athletes use heart rate variability Apple Watch trends to plan training.
Are smart scales accurate compared to a smartwatch or fitness tracker?
Smart scales measure body weight and composition using bioelectrical impedance, while watches focus on activity and heart metrics. They’re both useful, but smart scales are less accurate than medical-grade tools like the InBody 270 body composition analyzer. For best results, I recommend to use both together.
What is a pedometer in a smartwatch?
A pedometer is a sensor that counts steps by detecting motion. Modern smartwatches use accelerometers and GPS, making them more reliable than old-school pedometers. Sites like Gmap Pedometer also help track distance when paired with GPS.
Can kids use a smartwatch for fitness tracking?
Yes, but choose lightweight models with parental controls. Some brands offer kid-friendly trackers, but even an entry-level Apple Watch SE or Fitbit can work. If you’re wondering what is the best smartwatch for a 9-year-old, look for features like step counting, location sharing, and simple activity goals.
