Withings Pulse O2: Wristband, heart rate, oxygen (pictures)

The Withings Pulse O2 is a new product, but really it updates an old one: it's last year's Pulse fitness tracker and heart rate monitor plus a wristband accessory and new firmware.

A new vertical-display clock with pedometer status makes the Pulse O2's band easier to use.

The other sub-menus are all still horizontal, though.

The Pulse O2 counts steps taken, active movement, elevation, estimated calories, and distance traveled. It also tracks sleep and measures heart rate.

A red LED on the back measures stationary heart rate, and also measures blood oxygen percentage.

The O2 percentage reading is a feature that older Pulse trackers can get with a free firmware update.

The Pulse O2 charges via Micro-USB. Convenient, but keep it away from water.

The Pulse is small out of its band.

The button on top changes displays and syncs via Bluetooth. It works with Android and iOS.

An included clip lets you use the Pulse away from your wrist, too.

What you get in the box for $119: a band, a clip, the Pulse, and a charge cable.

Additional band designs show that you can swap the band with a regular watchband.

Withings redesigned its Health Mate app with a new layout. It's still as good as ever, but lacks social features.

Syncing's easy to do, but takes a few seconds.

Daily goal challenges don't sync with social networks, unfortunately.

Health reminders are new, and Health Mate also acts as a hub for Withings scale and blood pressure monitor readings.