Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display vs Beurer BF 700 Bluetooth Body Composition Analyser Scale
What separates them
These two differ on 7 recorded specifications. The Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display is ₹7,000 dearer.
Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display vs Beurer BF 700 Bluetooth Body Composition Analyser Scale
Xiaomi
Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display
₹11,999
CADR is the only number worth comparing between purifiers, and 400 cubic metres per hour is genuinely high for the price -- it is the figure that decides how fast the room actually clears.
Full details →Beurer
Beurer BF 700 Bluetooth Body Composition Analyser Scale
₹4,999
Weight to plus or minus 100 g is solid; the body fat percentage is not what people assume it is.
Full details →Who the Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display is for
Buy it if: Anyone in a north Indian city wanting real particulate clearance in a large room.
Avoid it if: Anyone unwilling to budget roughly Rs2,000 a year for filters -- a clogged filter is worse than none.
Who the Beurer BF 700 Bluetooth Body Composition Analyser Scale is for
Buy it if: Anyone tracking body composition as a trend over weeks, at a consistent time of day.
Avoid it if: Anyone wanting an accurate absolute body fat figure, and anyone with a pacemaker.
Specifications, side by side
7 of 18 rows differ. Differences first.
| Specification | Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display | Beurer BF 700 Bluetooth Body Composition Analyser Scale |
|---|---|---|
| Price | ₹11,999 | ₹4,999 |
| Clinical validation | CADR rated under GB/T 18801, the Chinese national standard | Bioelectrical impedance, calibrated against DEXA in the manufacturer's own study rather than an independent one |
| Connectivity | Wi-Fi 2.4 GHz, Mi Home app, Alexa and Google Home | Bluetooth to the Beurer HealthManager app |
| Measurement range | Effective room size approximately 48 square metres | Up to 180 kg, 100 g graduation |
| Power source | Mains, 230 V, 33 W maximum | Three AAA cells |
| Regulatory status | BIS marked for electrical safety | CE marked; not a notified medical device |
| Stated accuracy | Built-in laser PM2.5 sensor, plus or minus 10 percent or 10 micrograms per cubic metre | Weight plus or minus 100 g. Body fat by impedance, which is indicative rather than diagnostic |
| Stored readings | Filter life tracking in the app | 8 users, 30 readings each on device |
| Warranty | 1 Year Manufacturer Warranty | 1 Year Manufacturer Warranty |
| Annual energy use | 96 kWh a year at 8 hours a day on auto, about Rs768 at Rs8 per unit | not published |
| Annual running cost | Roughly Rs2,600 -- Rs1,999 filter plus about Rs600 of electricity at 8 hours a day | not published |
| CADR | 400 cubic metres per hour, particulate | not published |
| Electrodes | not published | Four, foot-to-foot |
| Filter | True HEPA H13, integrated with activated carbon | not published |
| Filter replacement cost | About Rs1,999, roughly every 6 to 12 months depending on air quality | not published |
| Known limitation | not published | Foot-to-foot impedance measures the lower body and estimates the rest; hydration, time of day and a recent meal all move the figure by several percent |
| Measured | not published | Weight, body fat, body water, muscle mass, bone mass, BMR, AMR |
| Noise | 32.1 dB on sleep mode | not published |
| Platform | not published | Tempered glass, 180 kg |
Every row is a figure one or both products record. A blank is a figure the catalogue does not hold, not a zero.