Best Budget Fitness Trackers Under £100

Keeping fit in 2025 doesn’t need to break the bank. Whether you're tracking steps, monitoring your sleep, or trying to get your heart rate in check, there’s a fitness tracker out there to match your goals and your budget.

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Gone are the days when high tracking came with a £300+ price tag. Today, some of the best fitness wearables come in under £100, and they’re smarter, sleeker, and more stylish than ever.

In this guide, we’ll break down the best budget fitness trackers under £100 available in the UK right now, covering the features that matter, from heart rate tracking to battery life, and letting you know which ones are actually worth the hype.

Why Buy a Budget Fitness Tracker?

Fitness trackers have evolved from step counters to powerful health companions. But do you really need to spend a small fortune? Not necessarily.

For most people looking to:

• Move more throughout the day

• Track workouts and calories

• Monitor heart rate or sleep patterns

• Get notifications without whipping out their phone

...a sub £100 tracker ticks all the right boxes.

Whether you're just getting started with fitness or want to dip a toe into wearable tech, these affordable models give you a taste of premium features without the premium price.

1. Xiaomi Smart Band 8 | £39.99

Best all rounder for under £50

Xiaomi continues to dominate the budget tracker space, and the Band 8 might be its most stylish and customisable yet. With a bright AMOLED display, fitness and sleep tracking, and over 150 workout modes, this little band punches way above its price point.

Highlights:

• AMOLED 1.62" display

• 16 day battery life

• 5ATM water resistance

• SpO2, heart rate, sleep and stress tracking

• Detachable design for shoe clips or pendants

What it lacks:

No built in GPS, but it can connect to your phone’s GPS if needed.

2. Amazfit Band 7 | £49.99

Best for battery life

Amazfit has been sneaking up on Fitbit’s turf for a while, and the Band 7 shows why. With 18 day battery life (seriously), 24/7 heart rate, sleep and stress monitoring, and Alexa built in, it’s easily one of the smartest budget bands available.

Highlights:

• Huge 1.47" AMOLED screen

• Up to 18 days of battery life

• Built in Amazon Alexa

• Sleep, SpO2, heart rate and stress tracking

• 120+ sport modes

What it lacks:

No GPS built in again, you'll need your phone for accurate route tracking.

3. Fitbit Inspire 3 | £89.99

Best for brand recognition + app ecosystem

If you want a household name, Fitbit still delivers, and the Inspire 3 is their best affordable option yet. It’s lightweight, beginner friendly, and integrates tightly with the excellent Fitbit app, offering guided workouts, goal tracking, and health insights.

Highlights:

• Sleek, slim design

• Up to 10 day battery life

• Tracks heart rate, sleep stages, SpO2

• Works with Fitbit Premium (free trial included)

• Great companion app

What it lacks:

Fitbit Premium is subscription based after the trial, and no built in GPS.

4. Huawei Band 8 | £49.99

Best for design and comfort

The Huawei Band 8 brings a more watch like design to the table while keeping things ultra lightweight and breathable. With its fast charging, you get a full day's use in just 5 minutes.

It’s also very accurate when it comes to sleep and heart rate tracking, thanks to Huawei’s advanced TruSeen and TruSleep algorithms.

Highlights:

• Ultra thin and lightweight

• AMOLED display

• Fast charging (full charge in 45 mins)

• 100+ workout modes

• Heart rate, SpO2, sleep and stress tracking

What it lacks:

Like others in this range, you’ll need to connect to your phone’s GPS.

5. Redmi Watch 3 Active | £59.99

Best for large display lovers

Want something more watch than band? The Redmi Watch 3 Active offers a massive 1.83" screen, and still stays well under budget. It has Bluetooth calling, a rare feature at this price point, and great activity tracking for casual users.

Highlights:

• Massive 1.83” LCD screen

• Up to 12 days battery life

• 100+ workout modes

• Bluetooth calling support

• 5ATM water resistance

What it lacks:

Screen isn’t AMOLED, so colours and contrast are average. No built in GPS.

6. realme Band 2 | £44.99

Best for beginners

The realme Band 2 offers a simple but elegant experience, with decent fitness tracking and a strong focus on usability. It’s a great entry point if you want solid basics without unnecessary extras.

Highlights:

• 1.4" touchscreen display

• 90 sports modes

• Heart rate + SpO2 sensor

• 10 12 day battery life

• Affordable and intuitive UI

What it lacks:

Limited third party app support and no built in GPS.

7. Honor Band 7 | £49.99

Best value for casual fitness tracking

If you want a tracker that gets the job done with a sleek, no fuss design, the Honor Band 7 is a solid contender. It offers most of the key health and fitness metrics, good screen visibility, and reliable battery life.

Highlights:

• 1.47” AMOLED display

• Heart rate and SpO2 monitoring

• 96 workout modes

• 14 day battery life

• Water resistance up to 50m

What it lacks:

No onboard GPS or advanced health insights, best suited for beginners or casual users.

What to Look for in a Budget Fitness Tracker

Before you hit “buy now”, consider what you really want from a tracker:

Battery Life

Longer battery life = less time on the charger and more time being active. Aim for at least a week of battery per charge.

Health & Fitness Features

Basic models track steps and heart rate, while more advanced ones include sleep stages, SpO2, stress, and even VO2 max estimates.

Workout Modes

Look for support for the activities you enjoy, walking, running, cycling, HIIT, or yoga. The more modes, the better.

App Compatibility

Most trackers sync with their companion apps. Fitbit, Amazfit, and Huawei all have robust ecosystems with guided workouts and goal setting.

GPS

If you're a runner or cyclist, GPS is a must, but most budget options rely on connected GPS (i.e., using your phone). That’s fine for many users, but not ideal if you want to leave your phone at home.

Final Thoughts

Budget fitness trackers in 2025 are smarter, more stylish, and more feature rich than ever. Whether you want a tracker that doubles as a smartwatch, or just something to keep you moving, you don’t have to spend a fortune.

If you're after best all round value, the Xiaomi Smart Band 8 and Amazfit Band 7 top the list. Prefer brand recognition and a proven app experience? Fitbit Inspire 3 has you covered. And for big screen style on a shoestring, the Redmi Watch 3 Active is a surprise winner.

— Charles Cooper, Wearables & Fitness Tech | The Tech Advisor