Its style is very Nothing<\/a>, a British minimalist tech brand best known for its stripped-back and stylish smartphones. CMF is a sub-brand of theirs aimed at a more budget market.<\/p>\n Nothing CMF Watch 3 Pro Key specs<\/p>\n Battery: 13 days (typical), 10 days (heavy use), according to Normal <\/p>\n Materials: Metal body & liquid silicone strap<\/p>\n Weight: 51g<\/p>\n GPS: Dual-band GPS<\/p>\n Sensors: Heart rate and SpO\u2082 blood oxygen saturation sensor<\/p>\n Aided by a scrollable and clickable wheel on the watch\u2019s rim, you access features and apps through a bright, 1.43-inch AMOLED touch screen. A lot is going on under that glass. The CMF Watch 3 Pro<\/a> will let you make Bluetooth calls, give you a torch, tell you your step count, heart rate, sleep \u201crating\u201d, blood oxygen measurement, your stress levels and much else. <\/p>\n It features a running coach, a raft of exercise activities, and when I took it out on the road, I found it was satisfyingly accurate at tracking my pace and the range of my heart rate. There\u2019s a whole suite of other activities it can track, too. <\/p>\n It was a pleasure to wear. The crispness of the screen and style gave it a laidback feel, but it had enough data to be useful as a sports or smartwatch. <\/p>\n The battery<\/a> will last, Nothing says, for 13 days. I found that after a few days of active use, it was down to around 60 per cent, which is about what you\u2019d expect given that claim. <\/p>\n Any downsides?<\/p>\n A fly in the ointment, though, is accuracy, especially of the heart rate monitor. It may raise your eyebrows. Yes, I was excited to tuck into Philip Pullman\u2019s long-awaited novel, The Rose Field<\/a>, but can my heart rate, while sitting reading it on the sofa<\/a>, really have reached 142? I have my doubts. <\/p>\n The sleep tracking is relatively basic (but then, not offering a \u201csleep score\u201d is, in a way, a kind of plus for smartwatches \u2013 such \u201cscores\u201d don\u2019t have much grounding in data and often serve only to add stress). The messages on the app sometimes read a little strangely. \u201cYou achieved the 96 per cent of your sleep goal,\u201d the watch told me \u2013 what is that \u2018the\u2019 about, I wondered? \u2013 before continuing, \u201cMaybe it\u2019s the little things in life that creep in, like being too excited before bed or not letting go of stress\u201d. Maybe it is, but I felt a little stressed trying to decipher that. <\/p>\n So, you have to take its readings with a pinch of salt. But perhaps that\u2019s priced in, given the price. <\/p>\n Cost – is it worth the price?<\/p>\n The watch<\/a> is enjoyable to use and easily customisable (Nothing says there are over 120 different watch faces, for one). It\u2019s something different from the parade of Garmins<\/a>, Apple Watches<\/a>, Samsungs,<\/a> and similar devices. Functionality, fun, and character, with caveats \u2014 not too bad for under \u00a3100.<\/p>\n Verdict<\/p>\n Nothing CMF Watch 3 Pro A slick device with a clean aesthetic, the Nothing CMF Watch 3 Pro is a world away from some of the noisier offerings in the smartwatch market, and it looks good and understated. <\/p>\n Its style is very Nothing, a British minimalist tech brand best known for its stripped-back and stylish smartphones. CMF is its sub-brand, aimed at the budget market. <\/p>\n Aided by a scrollable and clickable wheel on the watch\u2019s rim, you access features and apps through a bright, 1.43\u201d AMOLED touch screen. <\/p>\n There\u2019s a lot going on under that glass. You can make Bluetooth calls, use the on-board torch, read your step count, and get heart rate, sleep \u201crating\u201d, blood oxygen measurements, see your stress levels and more. Out on a cycle, it tracked the distance well and gave me useful heart rate readings, offering a training score and recovery time when I was done. There\u2019s a whole suite of other fitness aids on top. <\/p>\n It was a pleasure to use. The crispness of the screen and style gave it a laidback feel, but it had enough data to be useful as a sports or smart watch. <\/p>\n A fly in the ointment, though, is accuracy, especially of the heart rate monitor. It may raise your eyebrows. Yes, I was excited to tuck into my new book while sitting on the sofa, but can my heart rate really have reached 142? Take the readings with a pinch of salt, but perhaps that\u2019s what you can expect, given the RRP. <\/p>\n Functionality, fun, and character, with caveats \u2014 not bad for under \u00a3100.<\/p>\n Was: \u00a399<\/p>\n![](\"https:\/\/static.standard.co.uk\/2025\/11\/10\/9\/11\/Nothing-CMF-Watch-3-Pro.jpeg\")
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\nDesign and features<\/p>\n![](\"https:\/\/static.standard.co.uk\/2025\/11\/10\/10\/23\/Nothing-CMF-Watch-3-Pro1.jpeg\")
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\nBattery life<\/p>\n
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