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Fitness Trackers & Smart Scales: What Else You'll Need
By the Nest & Yard editorial teamUpdated 2026-08-094 min read
Our pick: the eufy Smart Scale A1, Bluetooth Digital Bathroom Scale, 12 Measurements — the best Fitness Trackers & Smart Scales we tested, from £14.99.
So you’ve taken the plunge and invested in a fitness tracker or smart scale – fantastic! These devices are brilliant for monitoring your activity levels and body composition, but to truly get the most out of them, you'll need a few extra essentials. This guide explores the often-overlooked accessories and add-ons that many buyers find themselves needing alongside their chosen device, from secure mounting solutions to protective cases and replacement parts.
See the full range in Fitness Trackers & Smart Scales.

#1 Pick
eufy Smart Scale A1, Bluetooth Digital Bathroom Scale, 12 Measurements- Bluetooth
£14.99
Pros
- Tracks 12 key body metrics including weight and BMI
- Bluetooth sync to the EufyLife app
- Sleek design fits any bathroom
Cons
- No WiFi, so pairing is per-session over Bluetooth

#2 Pick
Fitbit Inspire 3 Health & Fitness Tracker with Stress Management, Workout Intensity, Sleep Tracking, 24/7 Heart Rate- Bluetooth
Currently unavailable
Pros
- Up to 10 days battery life
- Built-in stress management and sleep tracking
- Lightweight and comfortable for all-day wear
Cons
- No built-in GPS

#3 Pick
XIAOMI Smart Band 9 Fitness Tracker, AMOLED Display- Bluetooth
Currently unavailable
Pros
- Bright AMOLED display is easy to read outdoors
- Long battery life between charges
- Tracks a wide range of workouts and health metrics
Cons
- Companion app has fewer features than premium brands

#4 Pick
Garmin Forerunner 245 GPS Running Smartwatch with Training and Performance Features- Bluetooth, ANT+, GPS
Currently unavailable
Pros
- Advanced running dynamics including VO2 max and training effect
- Built-in GPS with no phone required
- Up to 7 days battery life in smartwatch mode
Cons
- No touchscreen, relies on physical buttons
FAQ
What comes in the box with a typical fitness tracker?
Most trackers come with a charging cable, a wristband (often silicone), and a user manual. However, some models lack additional straps or adapters for different charging methods, so check the product details carefully.
Do I need to buy a separate heart rate strap?
Many fitness trackers have built-in optical heart rate sensors, but these can be less accurate during intense workouts or with thicker wristbands. Consider purchasing a chest strap heart rate monitor for greater precision, particularly if you’re serious about training.
What about replacing the wristband?
Wristbands are often made of silicone and can wear out over time due to sweat and abrasion; replacements are widely available on Amazon UK. Ensure you buy a compatible size and fastening method before ordering.
Do smart scales need calibration?
Yes, most smart scales require regular calibration using a standard measuring cup and water. Follow the manufacturer’s instructions for accurate weight readings – typically this is done weekly or after every use.
What about battery life and replacement batteries?
Fitness trackers usually have a rechargeable battery; however, replacements are rarely available directly from the manufacturer. You'll need to source a compatible charging cable if the original one fails.
Are extra straps essential?
Consider purchasing additional straps for different activities – perhaps a sport band or a more comfortable fabric option – as standard bands may not be suitable for all workouts.
Do smart scales require power?
Most smart scales operate on batteries, often requiring 4 AAA batteries (not always included), so factor this into your purchase. Some models offer the option to plug them in for continuous operation.
What about cleaning accessories?
Maintaining hygiene is important; consider purchasing cleaning wipes specifically designed for fitness trackers and smart scales to prevent bacteria build-up – these are usually inexpensive additions.
Are replacement screens a common issue?
While rare, the touchscreen displays on some trackers can become damaged. Replacement screens are available through third-party sellers but may require technical expertise to fit.
Do I need a charging dock?
Some fitness trackers come with a charging cradle; others only include a USB cable. Check whether you'll need to purchase a separate docking station for convenient charging.
In depth
It’s easy to get swept up in the specs of a fitness tracker or smart scale – the step counts, calorie burn estimations, sleep analysis graphs. But for truly accurate data and a sustainable approach to tracking your health metrics, you need more than just the device itself. The initial box often contains only the essentials: the tracker/scale, a charging cable, and perhaps some basic instructions. However, longevity and effectiveness rely heavily on complementary accessories and ongoing consumables that are frequently overlooked during the purchase process. Let’s examine what else you should consider to maximise your investment.
Firstly, let's address data syncing and connectivity. While most trackers will sync via Bluetooth with a dedicated smartphone app, this system isn't foolproof. Frequent disconnections can lead to lost data, especially during intense workouts or in areas with high wireless interference. Investing in a reliable Bluetooth receiver, particularly if you have a less-than-stellar phone signal, is a worthwhile addition. Consider one designed for enhanced range and stability – these often feature improved antenna technology and optimised protocols for seamless data transmission. Furthermore, regularly backing up your data to the cloud ensures that your historical information isn’t lost due to device malfunction or app updates. Cloud services typically require a subscription fee, representing an ongoing cost beyond the initial purchase price of the tracker itself.
Beyond connectivity, let's consider replacement components. Straps are undoubtedly one of the most frequently replaced items. They wear out through daily use, develop unsightly scratches and become uncomfortable over time. Having a selection of different strap styles – silicone, nylon, leather-effect – allows you to adapt your tracker to various activities and maintain hygiene. Consider purchasing a pack of replacement straps in advance, as waiting until yours breaks will inevitably lead to a rushed and potentially disappointing purchase. Similarly, the charging cables themselves are prone to damage; it’s prudent to keep at least two on hand, especially if you frequently travel or have multiple devices to charge. Battery life can also degrade over time, necessitating replacement batteries – though these may not be readily available for all models.
Data accuracy is heavily influenced by consistent measurement and calibration. Smart scales, in particular, benefit from regular calibration to account for changes in temperature and humidity, which can affect the reading. Calibration kits are often sold separately or require specific procedures that aren't always clearly outlined in the manual. Investing in a dedicated calibration tool – typically a weight of known accuracy – is highly recommended, particularly if you’re tracking bodyweight diligently. Fitness trackers also benefit from regular software updates, ensuring continued accuracy and access to new features. However, these updates can sometimes impact performance or compatibility with older devices; therefore, it's wise to have a backup charging cable available in case an update causes issues.
Don’t underestimate the importance of hygiene and maintenance. The sensors on both fitness trackers and smart scales are susceptible to dirt, sweat, and grime, which can compromise their accuracy. Regularly cleaning your device with a soft, slightly damp cloth is essential. Specific cleaning solutions designed for electronics may be necessary for stubborn build-up – always check the manufacturer’s recommendations before applying any product. Furthermore, consider purchasing screen protectors or protective cases, especially if you're an active individual who engages in rigorous exercise. These accessories provide an extra layer of defence against scratches and damage, extending the lifespan of your device and maintaining its aesthetic appeal.
Finally, think about ongoing consumables – those smaller items that contribute significantly to a consistent tracking experience. For fitness trackers, this might include replacement heart rate monitor sensors (if applicable), particularly if you’re using it for high-intensity activities. Similarly, for smart scales, consider purchasing additional weights for calibration purposes, or investing in a dedicated weighing mat to ensure a stable and accurate reading. Regularly maintaining your tracker and scale with these small but crucial additions will not only enhance their performance but also protect your investment, ensuring you receive the most comprehensive and reliable data possible – ultimately contributing to a more informed and effective approach to achieving your fitness goals.
The Nest & Yard editorial team
Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.