Best Smart Scales UK 2026

Best Smart Scales UK 2026: Compared by Features and Value

Written by Dr Muhammad Usman, MBBS

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A smart scale can record weight trends, estimate body composition and send readings to a phone app. For UK users, stone display, clear graphs and reliable app support matter as much as the number of metrics.

This guide compares five popular scales by features, price, connectivity and value. Body-composition readings are estimates, not medical measurements. Use our kg to stone converter for readings shown in kilograms.

The 7 Best Smart Scales in the UK

1. Withings Body Smart: Best Overall

The Withings Body Smart is the strongest all-round option for most UK users. It features a 2.8-inch colour LCD screen, multifrequency BIA (250 kHz), and Withings Precision Technology with automatic body position detection.

Key features (verified from withings.com):

• Connectivity: Wi-Fi 802.11 b/g/n + Bluetooth Smart Ready — syncs without your phone nearby
• Display units: kg, lb, st lb — stone supported
• Users: Up to 8 with automatic recognition
• Battery: 4x AAA, ~15 months
• Metrics: Body fat %, total body water %, muscle mass, bone mass, Visceral Fat Index, BMR, standing heart rate
• Modes: Athlete, Pregnancy, Baby, Eyes Closed
• UK price: £89.95 (in stock, 2-year guarantee)

Pros:

• Dual Wi-Fi + Bluetooth — no phone needed for sync
• Stone/lb display perfect for UK users
• 15-month battery life is exceptional
• 8 users with auto-recognition suits families

Cons:

• Withings+ subscription (£89.50/yr) pushed for premium features
• Setup requires a smartphone (cannot set up from computer)
• Body-composition readings are estimates, not medical measurements

Best for: Most UK households wanting a polished app, automatic syncing and everyday weight tracking.

**Check the Withings Body Smart on Amazon UK

2. Renpho Elis 1: Best Budget Option

The Renpho Elis 1 is a practical low-cost choice, tracking 13 body metrics — more than scales costing three times as much.

Key features (verified from renpho.com):

• Connectivity: Bluetooth only (no Wi-Fi)
• Display units: lb and kg ONLY — no stone display
• Metrics (13): Weight, BMI, body fat %, water %, skeletal muscle, fat-free mass, subcutaneous fat, visceral fat, bone mass, protein, BMR, metabolic age
• App: RENPHO Health — syncs with Apple Health, Fitbit, Samsung Health, MyFitnessPal
• Users: Unlimited with automatic recognition
• Rating: 4.9/5 from 10,458 reviews

Pros:

• Unbeatable value — 13 metrics at budget price
• Unlimited user profiles with auto-recognition
• Excellent app integrations (Apple Health, Fitbit, MyFitnessPal)
• Highly rated by thousands of users

Cons:

• No stone display — shows kg or lb only (UK users must convert)
• Bluetooth-only — no Wi-Fi auto-sync, phone must be nearby
• App less polished than Withings Health Mate

Best for: Budget buyers who track in kg or lb and want maximum metrics per pound.

**Check the Renpho Elis 1 on Amazon UK

3. Garmin Index S2: Best for Garmin Users

The Garmin Index S2 makes the most sense if you already use Garmin Connect. It sends weight and body-composition readings into the same ecosystem as your training and activity data.

Key features (verified from garmin.com):

• Display: High-resolution colour screen with weather widget and 30-day trend graph
• Connectivity: Wi-Fi ONLY — requires Wi-Fi, no Bluetooth sync
• Display units: lb, kg, or stones+lb — stone supported
• Users: Up to 16 with automatic recognition
• Battery: ~9 months (AAA)
• Metrics: Weight, 30-day trend, BMI, body fat %, skeletal muscle mass, bone mass, body water %
• US price: $199.99 (no UK price on Garmin site)

Pros:

• Premium colour display with weather widget — unique among scales
• 16 user profiles (most of any scale here)
• Stone/lb display for UK users
• Deep Garmin Connect integration for athletes

Cons:

• Wi-Fi only — useless without a Wi-Fi connection
• Premium price for fewer metrics than cheaper rivals
• Limited third-party app integrations (Garmin ecosystem lock-in)

Best for: Garmin watch owners who want weight data alongside fitness records.

**Check the Garmin Index S2 on Amazon UK

4. Eufy Smart Scale P2 Pro: Best for Body Composition Detail

The Eufy P2 Pro reports 16 body-composition measurements — including heart rate, which most rivals lack — with a 3D virtual body model in the app.

Key features (verified from eufy.com/uk):

• Connectivity: Bluetooth 5.0 + Wi-Fi (2.4 GHz) — auto-syncs even when phone is away
• Display units: lb/kg/st — stone supported (range 0 st 0.2 lb–28 st 5 lb)
• Metrics (16): Weight, body fat %, heart rate, BMI, muscle mass, bone mass, water, protein, BMR and more
• Features: 3D body model, Baby Mode, Pet Mode, IPX5 waterproof
• Battery: 4x AAA, ~6 months
• App: EufyLife with Apple Health, Google Fit, Fitbit syncing
• UK price: £54.99 (currently out of stock on eufy.com)

Pros:

• 16 metrics including heart rate at just £54.99 — superb value
• Dual Bluetooth + Wi-Fi (unlike Bluetooth-only budget scales)
• Stone display with dedicated unit button
• Baby and Pet modes for family use

Cons:

• Wi-Fi is 2.4 GHz only (no 5 GHz)
• On-scale screen shows weight/body fat %/heart rate only — full data needs app
• Currently out of stock on eufy’s UK store

Best for: Data-hungry users wanting maximum metrics without premium prices.

**Check the Eufy Smart Scale P2 Pro on Amazon UK

5. Withings Body Comp: Best Premium Option

The Withings Body Comp is Withings’ most advanced scale, adding Vascular Age (cardiovascular health) and Electrodermal Activity Score (nerve health) to the Body Smart’s metrics.

Key features (verified from withings.com):

• Display: 2.8” colour LCD, multifrequency BIA, Precision Technology
• Connectivity: Wi-Fi 802.11 b/g/n + Bluetooth Smart Ready
• Display units: kg, lb, st lb — stone supported
• Users: Up to 8 with auto-recognition
• Battery: 4x AAA, ~15 months
• Extra metrics: Vascular Age + EDA (on top of Body Smart’s full set)
• UK price: £139.95 (sale, regular £189.95) — in stock
• Rating: 4.4/5

Pros:

• Most comprehensive health data (Vascular Age is unique)
• Dual Wi-Fi + Bluetooth, stone display
• 15-month battery, 8 users
• Currently on sale (£50 off)

Cons:

• ~£50 premium over Body Smart for just 2 extra metrics
• Withings+ subscription (£89.50/yr) encouraged
• Overkill if you only track weight and BMI

Best for: Health-optimisation enthusiasts wanting cardiovascular insights.

Best for: People who want a premium scale and a wider set of home health estimates.

**Check the Withings Body Comp on Amazon UK

6. Salter: Best UK High-Street Option

Salter is a long-established British brand, widely available in UK high-street shops (Argos, Currys, John Lewis). Their smart scales offer body-composition tracking with straightforward apps.

Key features:

• Connectivity: Bluetooth (most models)
• Display units: kg, lb, st lb — stone supported on most models
• Metrics: Weight, BMI, body fat %, muscle mass, water %, bone mass (varies by model)
• Typical price: £25 to £60

Pros:

• Trusted UK brand with high-street availability
• Stone display on most models
• Simple setup, good for non-technical users
• Easy returns via UK retailers

Cons:

• Apps less feature-rich than Withings or Renpho
• Fewer advanced metrics than specialist brands
• Build quality varies by model

Best for: UK shoppers who prefer buying from familiar high-street brands.

7. Eufy Smart Scale A1: Best Ultra-Budget

The Eufy C1 is the most affordable smart scale from a reputable brand, offering basic body-composition tracking at a price close to non-smart scales.

Key features:

• Connectivity: Bluetooth
• Display units: lb/kg (check model for stone support)
• Metrics: Weight, BMI, body fat %, BMR and basic composition
• App: EufyLife
• Typical price: £20 to £30

Pros:

• Cheapest reputable smart scale
• Simple and reliable for basic tracking
• Good EufyLife app

Cons:

• Fewer metrics than P2 Pro or Renpho
• Bluetooth-only
• Stone display not guaranteed — verify before buying

Best for: Absolute beginners wanting the cheapest entry into smart weighing.

Our Verdict: Withings Body Smart Is the Best Smart Scale for Most UK Users

The Withings Body Smart (£89.95) is our top pick. It offers the best combination of stone display, automatic Wi-Fi sync, a polished app with clear trend graphs, and a 15-month battery. At £89.95 it sits in the sensible middle ground, more capable than budget models without the premium price of the Body Comp.

If budget is the priority, the Eufy Smart Scale A1 (around £15, 4.4/5 from 18,000+ reviews) is remarkable value. For body-composition detail at a fair price, the Eufy P2 Pro (£54.99) with 16 metrics is hard to beat.

How We Chose These Scales

We selected these 7 scales based on criteria that matter to UK buyers: stone display support, connectivity type (Wi-Fi vs Bluetooth), app quality, verified UK pricing, and UK availability on Amazon UK.

All specifications and prices were verified from official manufacturer websites (withings.com, renpho.com, garmin.com, eufy.com) in October 2026. We did not physically test each scale. Prices may change, so check the current price on Amazon before buying.

Which One Should You Buy?

• Tight budget → Renpho Elis 1 (13 metrics, Bluetooth-only) or Eufy Smart Scale A1 (around £15, simplest option)
• Best overall → Withings Body Smart (£89.95, stone display, Wi-Fi, best app)
• Body composition focus → Eufy P2 Pro (£54.99, 16 metrics including heart rate)
• Premium features → Withings Body Comp (£139.95, adds Vascular Age and EDA)
• Garmin ecosystem → Garmin Index S2 ($199.99, Wi-Fi only, 16 users, weather widget)
• UK high-street preference → Salter smart scale (trusted British brand, easy returns)

How to Get Consistent Readings From Your Smart Scale

Accuracy depends on consistency. Change the conditions and the numbers become noise. Keep conditions identical and the trend becomes meaningful.

1. Same time of day. Weigh first thing in the morning, after using the toilet and before breakfast. Do this every time.

2. Same hydration state. Do not weigh right after drinking a litre of water or after a workout where you sweated heavily. BIA readings depend on body water content.

3. Same clothing state. Ideally minimal clothing, or at least the same outfit each time.

4. Bare feet, clean and dry. The electrodes need skin contact. Dirty or very dry feet increase electrical resistance and skew readings.

5. Hard, flat floor. Carpet compresses and distorts weight readings. Place the scale on tile or wood.

6. Do not measure daily for body composition. Two or three times a week is plenty. Daily BIA readings add noise without adding signal. Daily weighing for weight alone is fine if it does not cause anxiety.

Which Smart Scale Metrics Actually Matter

Scales report 10 to 16 metrics, but most are noise. Three are worth watching:

1. Body fat percentage. The main number for most users. The trend over 4 to 12 weeks matters more than any single reading.

2. Skeletal muscle mass (in kg). You want this steady or rising slightly on a resistance training programme. A sustained decrease signals a need for more protein and strength work.

3. Total body water percentage. Normally 50 to 65%. Sudden changes usually mean hydration shifts, not real body composition changes, which helps you spot when a reading is noise.

Metrics to ignore: visceral fat rating (BIA cannot measure visceral fat directly, it needs DEXA or ultrasound), metabolic age (an algorithmic estimate, not a clinical measurement), and bone mass (BIA estimates this poorly).

Stone Display: What UK Buyers Need to Know

Most smart scale reviews are written for US audiences and never mention stone. For UK users who think in stone and pounds, this matters.

Scales with stone display: Withings Body Smart, Withings Body Comp, Garmin Index S2, Eufy P2 Pro. Change the unit in the companion app settings, or on some models with a button on the scale itself.

Scales without stone display: Renpho Elis 1 shows kg and lb only. If you buy Renpho and think in stone, use our kg to stone converter alongside the app.

Apple Health note: Apple Health stores weight in kg internally regardless of your display preference. Your scale app handles the conversion for display.

For height-based context, use the BMI calculator. BMI is a screening measure, not a diagnosis.

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