Comparison

Withings vs Slendertone Connect

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Withings

This app unifies your health data from devices and other apps, offering insights for weight loss, activity, sleep, and blood pressure management. It provides medical-grade precision and personalized coaching to help you understand your body and achieve long-term health goals. Share reports instantly with your doctor and track family health from one place.

Highlights
  • Unified health data from devices and apps
  • Weight and body composition monitoring
  • Activity and sleep tracking
  • Blood pressure and cardiovascular health management
  • Menstrual cycle and nutrition tracking
  • Family health profiles
  • Doctor report sharing
Features
Read full description

Whatever your goal—weight loss, activity, blood pressure management, or better sleep—the Withings App is your gateway to health management, offering education, insights, and a seamless way to stay connected. Built on clinical expertise, it unifies your health data to drive smarter decisions and lasting results. YOUR HEALTH ECOSYSTEM, SEAMLESSLY CONNECTED Easily install all your Withings devices and sync your data to bring your health universe together. ALL YOUR HEALTH APPS UNIFIED Connect your health apps like Apple Health, Strava, MyFitnessPal, and more to centralize your data with ease. TRUST MEDICAL-GRADE PRECISION, TO DRIVE PROGRESS Clinical-grade accuracy delivers reliable insights that help you make confident, informed decisions about your health. • WEIGHT & BODY COMPOSITION MONITORING • ACTIVITY MONITORING • SLEEP SCORE • HYPERTENSION MANAGEMENT • CARDIOVASCULAR DISEASE DETECTION • MENSTRUAL CYCLE TRACKING • NUTRITION TRACKING " SHAPE YOUR HEALTH JOURNEY Create a tailored health profile, monitor symptoms, and set achievable goals to better understand your body, stay motivated, and improve your health over time MULTIPLE PROFILES TO TRACK FAMILY HEALTH Track the health of your entire household from one app and easily share data between profiles for a more connected approach to care. INSTANTLY SHARE WITH YOUR DOCTOR Generate secure, shareable reports or send a live link to your health dashboard, giving your healthcare provider immediate access to your most up-to-date metrics. Withings+ POWERING YOUR JOURNEY TO LONGEVITY Precision health made personal—AI and in-app cardiologists guiding you forward. With Withings+, our premium subscription service, you decode your health through clinical reviews and AI assessments, delivering precise, tailored care to strengthen long-term habits and help support your journey toward a better, longer life. YOUR HEALTH SIMPLIFIED All metrics consolidated in one powerful Health Improvement Score to guide your long-term health. SPECIALIST CARE AT YOUR FINGERTIPS Get your ECG reviewed by a cardiologist within 24 hours — with an average wait time of just 4 hours (Observed Jan–Mar 2025). Feel confident knowing your heart health is in expert hands, quickly and reliably. DECODE YOUR BODY With Withings Intelligence, experience around-the-clock AI-driven insights, smart trend analysis, and personalized coaching to help you take control of your health. Kickstart your day with our brand new Vitalité Indicator. This powerful tool brings together key health metrics—including HRV, temperature, sleep patterns, and more — to evaluate your rest and effort levels. Based on these insights, it offers personalized suggestions to help you boost your energy and optimize recovery for the days ahead. You’ll also receive a detailed breakdown that can highlight early signs of potential illness and signal when it’s time to give yourself extra care. YOUR WEEKLY HEALTH BREAKDOWN Track your strengths and weaknesses each week to refine and boost your Health Improvement Score. ABOUT WITHINGS ​​Withings creates clinically validated health devices embedded in beautifully designed, easy-to-use products. A universe of insights all synced to a single source of truth, providing you with the ultimate way to stay connected to your health. Terms of use:https://www.withings.com/legal/applications-conditions#/legal/services-terms-and-conditions Privacy policy: https://www.withings.com/legal/applications-conditions#/legal/privacy-policy Medical compliance: https://www.withings.com/eu/en/compliance?srsltid=AfmBOoovZiYectAmYJC5gs2HhHrMxHAhPdN4NFQQI5RSImnQdrLoxKSc

About

Slendertone Connect

This app offers a personalized training experience to help you achieve your toning goals. It provides custom coaching, interactive programs, workout reminders, and progress tracking, all controlled wirelessly via your smart device. Achieve firmer abs, improved posture, and enhanced core strength.

Highlights
  • Personalized training experience
  • Custom toning programs
  • Interactive toning programs
  • Workout reminders
  • Progress tracking
  • Wireless control via smart device
Features
Read full description

A completely personalised training experience to keep you motivated and help you hit your toning targets from 4 weeks Requirements • Slendertone Connect abs toning belt • iPhone 5S (or newer) What are the benefits of a stronger core? A strong core offers much more than toned abs and a flatter tummy – it helps you run further, jump higher, sit straighter, stand taller and feel amazing. Connect is the smartest, most innovative abdominal trainer available, offering custom coaching and motivation, interactive toning programmes, workout reminders and progress tracking. Custom toning programmes 5 high-intensity programmes for specific training goals, including: 1. Essential abdominal training – improve abdominal definition and look and feel amazing. 2. Advanced abdominal training – take your core strength and endurance to the next level. 3. Post-natal firming – for busy mums toning the tummy and getting back into shape. 4. Complement your fitness regime – boost your performance in sports and training. 5. Upcoming event – reduce your waistline and tone your abs for special occasions. Personal coaching Personalised coaching and motivation, progress tracker and toning reminders to help you hit every training goal and beat your weekly workout targets. Sync seamlessly You can sync your smart device to your Connect belt to wirelessly control every toning workout. Complete abdominal workout Strengthens all of the abdominal muscles: the transversus and rectus abdominis (the six pack) and the internal and external obliques. The deep, difficult-to-tone transversus abdominis helps reduce the waistline by tightening and firming the tummy. Clinically proven technology Clinical trials conducted by Dr John Porcari at the University of Wisconsin-La Crosse (2005 and 2009) concluded: • 100% of users reported firmer, more toned abs from 6 weeks. • Users experienced a 72% average increase in abdominal endurance from 4 weeks. • Users experienced a 49% average increase in abdominal strength from 4 weeks. • Users reduced their waistline by an average of 3.5cm from 8 weeks. • 54% of users reported improved posture from 4 weeks. With extensive clinical trials and 50+ years of expertise, we are constantly perfecting and testing our products so that you can achieve the very best results. To find out more about our unique brand, innovative technology and clinical trials, please visit us at slendertone.com.

Screenshots

Withings4 screens
Slendertone Connect3 screens

Verdict

The call

The clearest difference is in-app purchases: Slendertone Connect at none against Withings's 3. Slendertone Connect also leads on iOS requirement (14.0 vs 18.0). Withings's advantage is ads (none vs shown) and ratings volume (369K vs 456). On price, rating, review sentiment and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Withings sells 3 in-app purchases, starting at $9.99 per month. Slendertone Connect asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Withings against 4.6 for Slendertone Connect. That said, the two scores are not equally well evidenced: Withings has 369K ratings behind it against 456, so its average is the more settled of the two. Written reviews are what separate them: 24% of Withings's written reviews are positive against 17% of Slendertone Connect's.

UpkeepUpdate frequency

Withings ships an update fortnightly, Slendertone Connect every 2 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 5 level
Withings versus Slendertone Connect: the parameters behind the verdict, then further details
ParameterWithingsSlendertone Connect
PriceFreeFree
Rating4.6 (369K ratings) — better4.6 (456 ratings)
Positive reviews24.2% of reviews — better17.0% of reviews
Number of ratings369K — better456
Update frequencyFortnightly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemiumFree with in-app purchases
Best chart rank#56 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.014.0 — better
Further details — not scored
Size461 MB42 MB
Age rating4+17+
DeveloperWithingsSlendertone

Customer experience

Withings

All ratings368,957 ratings
Positive90.0%
Neutral3.4%
Negative6.5%
Written reviews6,263 reviews
Positive24.2%
Neutral9.4%
Negative66.3%

Slendertone Connect

All ratings451 ratings
Positive88.9%
Neutral1.8%
Negative9.3%
Written reviews100 reviews
Positive17.0%
Neutral5.0%
Negative78.0%

User reviews

Withings

From 369K App Store ratings

What we love

  • ⭐ Excellent app and product integration
  • 📊 Comprehensive health tracking
  • 🔋 Good battery life on devices
  • 🤝 Helpful customer support

Room to improve

  • 🐛 Connectivity and syncing issues
  • 📈 Confusing or cluttered UI
  • 🔍 Lack of customization options
  • 💰 Expensive for some features

Slendertone Connect

From 456 App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Consistent performance
  • 💪 Effective for toning

Room to improve

  • 🐛 Frequent disconnections
  • ⚠️ Unreliable app
  • 🔁 Constant need to re-pair
  • 💻 Buggy and crash-prone
  • 🔒 Privacy concerns

Bugs and requests

Withings

Reported bugs

4 issues
  • Inconsistent weight data reporting
  • App crashes or freezes on launch
  • Inaccurate body composition measurements
  • Unreliable blood pressure readings

Requested features

4 requests
  • Improved sleep tracking and reporting
  • More granular data visualization
  • Ability to manually edit or delete measurements
  • Better integration with third-party apps

Slendertone Connect

Reported bugs

4 issues
  • Login issues
  • Connectivity problems
  • Crashes during setup
  • Data loss and progress not tracked

Requested features

3 requests
  • Integration with Apple Health
  • Apple Watch app
  • Stay-logged-in option

In-app purchases

3 purchases

Withings

Subscriptions2
  • Withings+ Monthly offer14 Days trial$9.991 Month
  • Withings+ Annual offer14 Days trial$99.991 Year
One-time1
  • ECGs Cardiologist Review$59.99
None

Slendertone Connect

No in-app purchases

Questions

Is Withings free?
Withings is free to download, with in-app purchases available.
Is Slendertone Connect free?
Slendertone Connect is free to download, with no in-app purchases.
Which has better reviews, Withings or Slendertone Connect?
Withings is rated higher. Withings averages 4.6 out of 5 from 369K ratings, while Slendertone Connect averages 4.6 from 456 ratings.
Do Withings or Slendertone Connect have ads?
Slendertone Connect shows ads; Withings does not.
Which is updated more often, Withings or Slendertone Connect?
Withings ships an update fortnightly, and Slendertone Connect every 2 months. Most recently, Withings was updated on October 30, 2026 and Slendertone Connect on October 24, 2026.

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