Sensor Bio V2 compared

These pages compare Sensor Bio V2 with the wearables teams ask about. Each comparison uses the same fields: raw waveform access, SDK and API openness, sensors, battery, and form factor.

Raw waveform accessSDK and API opennessSensorsBatteryForm factor

Last updated October 29, 2026

Nine comparisons

Sensor Bio V2 next to each device

Each card uses that page's full-device packshot and its own one-line difference.

At a glance

The same fields, side by side

Shortened from each comparison table. Open a page for the full specification.

Sensor Bio V2 compared with each device on form factor, battery, sensors, raw waveform, and SDK or API
Device	Form factor	Battery	Sensors	Raw waveform	SDK / API
Sensor Bio V2	Signal-first screenless bandAbout 1 oz, one size, adjustable, all-day wear	5 to 7 days of continuous wear at the default duty cycle	One multi-LED package (infrared, red, and green), two photodiodes, a 3-axis accelerometer, and a skin temperature sensor on the underside	Raw multi-wavelength PPG is available today	No separate license
Polar 360	Fixed band sizing, textile and silicone strap	Up to 5 days per charge	Precision Prime optical HR, single generation, with accelerometer	Raw PPG and accelerometer available	only through a separate B2B SDK license
WHOOP 5.0 / MG	Screenless sensor; wrist, biceps, or WHOOP Body apparel	14+ days per charge	Optical heart-rate sensors collecting data points every second, 24/7	Continuous raw PPG waveforms, beat-to-beat / RR intervals, and continuous intraday HR sample series are not listed	confirm Unite / raw export terms with WHOOP
Oura Ring 4	Width 7.90 mm, thickness 2.88 mm, weight 3.3–5.2 g	Typically 5–8 days on Ring 4	Smart Sensing: red and infrared LEDs for sleep SpO2; green and infrared PPG	Continuous raw PPG waveforms, raw accelerometer series, beat-to-beat IBI, and an on-device streaming SDK are not listed	not listed on the public Oura Cloud API v2 docs
Garmin Venu 3	30 g without band, 47 g with included band	Up to 14 days smartwatch mode	Garmin Elevate wrist HR	Continuous raw PPG / multi-wavelength waveforms are not listed	Enhanced beat-to-beat interval is listed for Enterprise Health API and Health SDK
Apple Watch Series 12	42mm aluminum GPS 32.2 g	Up to 24 hours of normal use	Health Sensing System: second-generation electrical heart sensor, always-on optical heart sensor, blood oxygen sensor, and temperature sensor	Continuous raw PPG waveforms are not a HealthKit data type	SensorKit PPG is research-entitlement gated
Ultrahuman Ring AIR	2.4–3.6 g	4 to 6 days per charge	Infrared PPG plus red LEDs (HR and SpO2), green LEDs (HR), infrared LEDs (HR)	Continuous raw multi-wavelength PPG and IBI are not listed	A PPG Recordings API is listed in the UltraSignal docs nav
Google Fitbit Edge	17.7 g without band, 32 g with band	Up to 7 days of battery life	PPG optical heart rate	Raw PPG / photoplethysmogram and beat-to-beat / IBI are not listed	Google Health API returns derived heart rate and wellness metrics
CardioWatch 287-2B	one of the smallest and lightest patient bracelets	Long battery life for continuous monitoring	Multi-sensor bracelet: ACC, PPG green / red / infrared, one-lead ECG, temperature	Raw PPG (green / red / infrared), ACC, BIOZ, and ECG export are documented	REST API, and Bluetooth SDK syncgated by Corsano commercial packages
Hume Band 2.0	Weight and dimensions are not listed	Up to 14 days per charge with typical use	5 LEDs and 4 photodiodes	Raw PPG waveform, IBI, and accelerometer export are not listed	A public developer API, SDK, or raw PPG waveform export is not listed