Withings Pulse Ox review

Pulse tracking and blood oxygen tracking add little but this is still an inviting wrist wrangler

Withings Pulse Ox
The Ox was previously the O2, until legal unpleasantness occurred

Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.

And so to bed…

Also not quite there with these kind of devices (see the Garmin VivoSmart review) is the sleep monitoring. Last night, for instance, the Ox insisted I'd had 8.01 solid hours (or 8.01 'in bed' with 7 hours 51 minutes asleep). Yes, that's a bit more in-depth analysis than the Garmin offered, but that doesn't mean it's any more correct or useful. If my sleep was really 98% efficient as reported rather than 5 hours of tossing and turning, I'd look a lot fresher. It also regularly reported that I was asleep within 10 minutes of lying down, which hasn't happened since I was about two.

Sleep, as seen in barchart form

The reminders section does offer sleep advice, theory and explanation, which could prove useful to some.

Be still my thrashing heart

The heart-rate monitor? Well I have my doubts about that as well. My pulse showed normal levels when seated, but at times was a bit all over the place during exercise – and I mean going from alarming to "terrified hamster", rather than just higher. This makes it difficult to use for zonal training and probably not advisable as a guide to your general health.

The blood oxygen feature, which is what "Ox" – and "O2" before it – alludes to, is another bolted-on feature of limited use, at least for me. Basically, if your O2 drops to 90 or below – at which point you wouldn't be feeling at all great anyway – you should seek medical opinion. It has no bearing on your routines other than that.

Smartwatch features and battery

One potentially very useful feature of Garmin's Vivosmart was the addition of smartwatch-style notifications and music controls. Well, the Pulse Ox does not do that. However, it offers a longer battery life, lasting a good 10-12 days per charge for me, whereas the Vivosmart generally lasted less than a week.

Verdict

If you want motivation to take more strides in 2015, the Withings Pulse Ox could be a winner. It's all very easy to use straight out of the box, has a fun, clear, cheery app and easily allows you to invite friends to your Leaderboard to see who can take the most steps, notifying you each time the rankings change, which is a really nice touch.

There's also a whole host of other Withings health products that you can sync data up with if you so wish, from blood pressure monitors to scales. For a slightly older person, this could make the Ox the perfect product.

If you're more interested in fitness than health, it's still a great step-counter-with-knobs-on, but it doesn't really deliver as a tracker for more vigorous exercise, despite its welter of sensors and features.

We like

The step counting, ease of use and relatively low price – it's a good £40 cheaper than the Vivosmart – all appeal here.

We dislike

As mentioned, you should take the calories burned or sleep analysis with a heavy pinch of salt (low-sodium, if possible). It's a shame more use isn't made of the altimeter and heart rate analysis. The fact it's not water resistant enough to shower in is fairly ridiculous.

Verdict

Of course, hardcore athletes will already know not to go trading in their Garmin Forerunner, TomTom Runner or (maybe) Epson Runsense watches for something like this, but for a general guide to the average person's movements throughout the day, it's not bad at all. I am struggling, however, to think of any really obvious reasons to choose this over similar devices from Garmin, Fitbit, Jawbone et al.

Very solid, in short. Even if it's not quite one to set your heart racing.

Latest in Fitness Trackers
Garmin Instinct 2X Solar watch on red background with white text reading "TechRadar lowest price"
The Garmin Instinct 2X Solar can run indefinitely on a single charge, and it's never been cheaper
The Xiaomi Smart Band 9 Active being worn in a park.
Xiaomi Smart Band 9 Active review: Too many corners cut
The Xiaomi Smart Band 9 Pro before a red candle
Xiaomi Smart Band 9 Pro review: One big upgrade that comes at a price
Fitbit Inspire 3 in pink on yellow background with TechRadar price cut sign
The Fitbit Inspire 3 is a great last-minute bargain at this stunning low price
Garmin 965 on a grey background with the text cyber monday deal s
Every Cyber Monday Garmin deal still live from Black Friday
Garmin Instinct 2 Solar watch on teal background with text reading "TechRadar don't miss"
This Garmin watch can run indefinitely on a single charge - and it's cheaper than ever for Black Friday
Latest in Reviews
Samsung Music Frame on a table beside some books and a vase
I spent six weeks listening to the Samsung Music Frame and it kept missing the beat
GlocalMe KeyTracker
When I tested this global tracker, it trounced the Apple AirTag in so many ways
An AMD Ryzen 9 9950X3D on its retail packaging
I've reviewed three generations of 3D V-cache processors, and the AMD Ryzen 9 9950X3D is the best there is
Mac Studio on a desk
Apple Mac Studio (M3 Ultra): the ultimate creative workstation
Apple iPad Air 11-inch M3 (2025) Review
I tested the 11-inch iPad Air with M3 for five days, and it stretches the value even further with more power for the same price
Moiraine using her magic in The Wheel of Time season 3
The Wheel of Time season 3 proves that Amazon's Lord of the Rings TV show isn't the only high fantasy heavyweight worth watching on Prime Video