Smart wearable device maker Pebble has unveiled a Halo smart ring, whose biggest advantage is its LED digital display. It is priced at $95 (approximately RMB 681), with an initial launch price of $45 (approximately RMB 322).

Image source: Pebble
This smart ring features a stainless steel casing, supports Bluetooth 5.2 connectivity, is available in six sizes, and is water and dust resistant. It supports step counting, heart rate monitoring, sleep tracking (including REM sleep), stress monitoring, and blood oxygen level measurement. It also supports motion control of smartphones (e.g., using gestures to control music, take photos, and turn pages in e-books).
Pebble did not disclose the battery capacity of the HaloSmartRing, but claimed it has a battery life of 3-4 days and a charging time of two hours. (Source: IT Home)