Smart Scales Review
Dr Trust 509 Smart Scale Review: Rechargeable, Mixed Reviews
Our verdict
The Dr Trust 509 is a rechargeable Bluetooth body-composition scale with a long feature list, but a middling 3.9-star Amazon.in rating, sync complaints and BIA estimates make it hard to recommend over rivals.
Buy it if
- Buyers who prefer USB charging to replacing AAA cells
- Casual weight tracking with occasional body-fat checks
Skip it if
- You want the most consistent readings in its price band
- You need body-composition numbers you can act on medically
- You have a pacemaker or other implanted medical device
What we like
- Rechargeable battery, no cells to buy
- Up to 18 metrics claimed, including visceral fat and body age
- Tempered-glass top; shows weight without the app
What we don’t
- About 3.9 stars from more than 6,600 Amazon.in reviews
- Owners report Bluetooth sync problems and inconsistent readings
- Micro-USB charging
- Metric count differs between listings (16 or 18)
Score breakdown
- Performance
- 5.6
- Features
- 6.8
- Ease of use
- 6.2
- Battery life
- 6.8
- Value for money
- 6.0
- After-sales service
- 6.0
The Dr Trust 509 is for people who want a rechargeable smart scale and mainly care about their weight, with body-fat numbers as a rough extra. It has a long list of claimed metrics and a tidy tempered-glass design. Against that, its Amazon.in rating is middling for this category, owners report Bluetooth sync problems, and the model dates back to 2020.
How reliable are the readings?
Weight is the dependable part. Body fat, muscle, visceral fat and body age are estimates from bioelectrical impedance between your feet, plus the age, height and sex you enter. Those estimates move with hydration, recent exercise and foot placement on the four electrodes, and a foot-to-foot scale sees mostly the lower body. We found no independent accuracy test of the 509, and a pharmacy listing for the 509 itself says the body metrics are for reference only.
What do owners complain about?
On Amazon.in the 509 sits at about 3.9 out of 5 from more than 6,600 reviews, according to Null Fake’s analysis, which is lower than the HealthSense BS 171’s roughly 4.1. Owners praise the design and family profiles. The recurring complaints are Bluetooth sync failures and readings that don’t repeat consistently. Null Fake’s sample was small, so treat the themes as indicative.
Is the rechargeable battery a real advantage?
It saves buying AAA cells, and Techlomedia’s 2020 review liked the design and setup. The catch is the dated micro-USB port, and Dr Trust doesn’t publish how long a charge lasts. If the battery wears out after the warranty, you can’t swap in fresh cells as you can with a battery-powered scale.
Does it work without the app?
Yes, for weight. Techlomedia confirmed it shows weight on the LCD without a phone, along with room temperature. Body-composition metrics, history and multiple profiles need the Dr Trust 360 app over Bluetooth, which is where the sync complaints come in.
Who should not use it?
The manual tells people with pacemakers or other implanted medical devices to consult a doctor before use. Use it on a hard, level floor; readings on carpet or uneven tiles are less reliable.
What we could not verify
We could not confirm a current MRP, the warranty period or the battery life per charge. Listings disagree on whether it tracks 16 or 18 metrics, and the only full hands-on review we found is from 2020.
How we researched
We have not used the Dr Trust 509. This review draws on the user manual, retailer listings, a 2020 hands-on review by Techlomedia, Null Fake's analysis of more than 6,600 Amazon.in owner reviews, and general guidance on the limits of consumer BIA scales.
We have not tested this product ourselves. This review is based on published specifications, the manual, other publications’ tests and owner feedback.
How does the Dr Trust USA Smart Body Fat and Composition Scale 2.0 (509) compare?
-
HealthSense BS 171 Fitdays Smart Bluetooth Body Composition Scale C 6.8
The HealthSense BS 171 runs on AAA cells, but has a higher Amazon.in rating (about 4.1 against 3.9), supports 24 users and syncs with Google Fit, Health Connect and Samsung Health. It is the safer pick for most families.
Key specs
| Measurement method | Foot-to-foot BIA, 4 electrodes |
|---|---|
| Metrics (claimed) | Up to 18 |
| Capacity | 180 kg |
| Battery | Rechargeable lithium-ion, micro-USB |
| Platform | Tempered glass |
| App | Dr Trust 360 (Android, iOS) |
| Model code | IGH00220 |
Questions buyers ask
Is the Dr Trust 509 smart scale rechargeable?
Yes. The Dr Trust 509 Smart Body Fat and Composition Scale 2.0 has a built-in rechargeable lithium-ion battery that charges over micro-USB, so it needs no AAA cells.
Can people with a pacemaker use the Dr Trust 509?
Dr Trust's manual for the 509 says people with pacemakers or other implanted medical devices should consult their doctor before use, because the scale passes a small current through the body for its BIA readings.
How accurate is the Dr Trust 509 body-fat reading?
The Dr Trust 509 measures weight directly but estimates body fat and muscle from foot-to-foot impedance. The reading changes with hydration and foot position, so treat it as a trend indicator rather than a clinical figure.
Also consider
- HealthSense
Smart Scales
HealthSense BS 171 Smart Scale Review: Good Trends, Rough Fat %
The HealthSense BS 171 is a well-rated Bluetooth scale that tracks weight trends for up to 24 people and syncs with Google Fit and Samsung Health, but its body-fat and muscle figures are estimates, not measurements.