Qardio Base 2 Review: The Scale Without a Screen

Design & Build Quality

The Qardio Base 2 is the most visually distinctive scale reviewed here. Its oval form factor — 33.5 × 33.5 × 3.3 cm, polished white ABS and tempered glass — sits somewhere between a bathroom accessory and a piece of product design. Available in Arctic White and Space Grey, it looks intentional in a way that round or square scales do not.

The displayless top surface is the defining feature. There is no LED readout, no display strip — just a clean white oval that you step on and then read the result in the app. The four stainless steel electrodes are embedded flush with the underside of the upper surface. A LED ring on the edge illuminates briefly to confirm the measurement is taking place.

The build quality is good. The ABS material feels premium despite not being glass throughout. Weight capacity is 180 kg and the scale measures to 0.2 kg — marginally less precise than the 0.1 kg increment of the Withings and Garmin scales.

Setup & Ease of Use

Setup requires the QardioBase app, a Qardio account, and WiFi pairing. The process takes 10–15 minutes. Once connected, the scale syncs measurements automatically over WiFi — no phone proximity required, data uploads in the background.

The displayless design introduces a practical inconvenience: if you want to know your weight, you must open the QardioBase app. This is entirely intentional, but for users accustomed to glancing at a number on the scale without retrieving their phone, it is a genuine friction point. The scale does confirm the measurement was taken via a brief LED ring pulse, but no data is shown.

Multi-user support handles up to eight profiles. Weight-based recognition assigns readings to the correct account automatically.

Measurement Accuracy

The Qardio Base 2 uses foot-to-foot BIA for body composition estimation. It measures body fat percentage, muscle mass, and bone mass. Weight is precise to 0.2 kg — slightly less precise than competitors at this price.

BIA body composition accuracy follows the same pattern as other consumer scales: the inherent ±3–5 percentage point margin vs DEXA applies. Qardio references physician involvement in their measurement methodology but does not publish independent validation data at the consumer product level. The accuracy profile is in line with comparable single-frequency BIA devices.

Pregnancy mode weight tracking is straightforward weight monitoring — the BIA body composition measurement is typically disabled or ignored during pregnancy, as BIA readings are not recommended as reliable during pregnancy due to changes in body water distribution.

Features & Insights

The Qardio Base 2 measures:

• Weight (to 0.2 kg)
• Body fat percentage
• Muscle mass
• Bone mass
• BMI

Plus the distinctive features:

• Pregnancy mode — gestational weight gain tracking aligned to clinical guidelines
• Smart feedback — QardioBase suggests whether weight change is within a healthy trend without showing raw numbers prominently

The feature set is narrower than the Eufy P3 (16 metrics) or even the Withings Body+ (five metrics plus BMI). The Qardio’s differentiation is the experience design, not the measurement comprehensiveness.

App & Software

The QardioBase app is clean but basic. The home screen shows a weight trend graph (without the specific numbers prominently displayed by default — you can tap to reveal them), a goal-tracking summary, and a body composition overview.

What works:

• Trend visualisation without daily number anxiety is effective for its intended audience
• Pregnancy mode presentation is thoughtful and appropriately calibrated
• Goal-setting and progress tracking are functional

Where it falls short:

• Analytical depth is lower than Health Mate at the same price point
• No multi-metric overlay (fat vs muscle comparison)
• Third-party integration is limited compared to Withings or even Eufy

Data Privacy

Qardio is a US company (San Francisco-based) subject to US data protection law and, for European users, GDPR-compliant operations. Health data is stored on US servers. Qardio’s privacy policy states data is not sold to third parties and can be deleted on request. The company operates in the medical-adjacent wearables space and its privacy practices reflect this positioning. Data export is available from account settings.

Platform Compatibility

The integration list is limited. Apple Health receives weight and BMI but not body composition metrics — a notable gap compared to Withings. Fitbit, Samsung Health, and Garmin Connect are absent entirely.

Subscription & Pricing

At £99.99, the Qardio Base 2 matches the Withings Body+ on price while delivering fewer measurements, a less capable app, and narrower integrations. The distinctive design and pregnancy mode are the premium being paid for.

The optional QardioJournal subscription adds blood pressure tracking, medical professional sharing, and extended health logging. This is relevant for users with a specific health management use case (hypertension tracking, doctor monitoring) but adds cost for general body composition use.

Final Verdict

The Qardio Base 2 is a thoughtful, well-designed product for a narrow audience: users who specifically want a displayless scale, those tracking pregnancy weight gain, or anyone for whom the psychological design of not seeing daily numbers is genuinely beneficial. In those specific cases, nothing else does what it does.

For general body composition tracking, the Withings Body+ is the better choice at the same price — more measurement depth, better app, and wider integrations. The Eufy Smart Scale P3 offers similar core metrics for half the price. The Qardio’s premium is justified only by its unique design philosophy.

Who Should Buy?

Buy the Qardio Base 2 if:

• You specifically want a displayless scale to avoid daily number anxiety
• You are pregnant and want gestational weight gain tracking built in
• You travel frequently and the compact oval design is practically useful

Buy the Withings Body+ instead if:

• You want the best combination of measurement quality, app depth, and integrations at this price

Buy the Eufy Smart Scale P3 instead if:

• You want similar core body composition tracking at half the price