Wearable guides
Empatica EmbracePlus and E4
Empatica’s current research watch is EmbracePlus. E4, its predecessor, is retired. Both are wrist wearables with PPG, electrodermal activity, temperature and motion sensors. The photograph on this page is EmbracePlus.
Empatica describes EmbracePlus as the successor to the E4 and the wearable in its Health Monitoring Platform. Empatica’s comparison lists PPG, electrodermal activity, a temperature sensor and an accelerometer on both devices. The E4 is no longer available for purchase (Empatica: E4).
Empatica lists EmbracePlus at 30 g, with a 4-channel PPG sensor, a 64 Hz accelerometer, a waterproof case and battery life of more than 2 days. It lists the retired E4 at 40 g, with a 1-channel PPG sensor, a 32 Hz accelerometer, splash resistance and battery life up to 36 hours (Empatica: E4).
The photograph on this page is EmbracePlus, from Empatica’s EmbracePlus page. It is not the E4. The E4 research record uses a separate product photograph from Empatica’s store. This guide does not add accuracy figures.
Sourced figures
Every number in this guide comes from the source linked beside it. Each study result applies to that study's devices, participants and protocol only.
Empatica EmbracePlus manufacturer comparison: 30 g; 4-channel PPG; 64 Hz accelerometer; waterproof; battery life of more than 2 days.
Empatica E4 manufacturer comparison: retired and no longer for sale; 40 g; 1-channel PPG; 32 Hz accelerometer; splashproof; battery up to 36 hours.
Research records
Device records collect datasets, papers, and the sourced figures on this page.
Also named in this guide: Empatica EmbracePlus
Frequently Asked Questions
Is the photograph the E4?
No. It is EmbracePlus. The E4 research record uses a separate product photograph from Empatica’s store.
Is the E4 still sold?
Empatica says the E4 is retired and no longer available for purchase. EmbracePlus is the current research watch.
Sources
- Empatica. EmbracePlus
- Empatica. E4 wristband