Best Smartwatches with Blood Oxygen Monitoring of 2026

Ten days is the longest claimed runtime in this group, and it comes with one of the quickest charges: two hours on the bundled cable. We care about that pairing more than a spec sheet suggests we should, because the habit that kills a health watch is rarely a bad sensor. It is the night you leave it on the charger and lose the sleep and oxygen data you bought the thing for.

The rest of the package is generous for the tier: a 1.83-inch HD touchscreen that makes notifications readable at a glance, Bluetooth calling you can answer from the watch, 123+ sport modes, and IP68 sealing. We think it is the easiest big-screen watch here to live with day to day. What we cannot tell you yet is how it behaves after a year of daily wear, since there is no long history behind it, so we are recommending it on design and specifications rather than on a proven track record.

Oxygen is the metric worth your attention here, and the app keeps the reading alongside heart rate and sleep. If a large display and a long gap between charges are your priorities, this is the pick. If you swim laps, the 3ATM rating on our top pick is worth the step up.

Calls stay on your phone with the MorePro Air6. You get call, text and app notifications on the wrist but cannot answer from the watch, and that tells you most of what this is: a fitness tracker in a watch body. Once we stopped expecting otherwise, it became the easiest thing here to live with. At 1.12 ounces with a soft silicone band and an IP68 body, it disappears on the arm and shrugs off rain and handwashing.

Oxygen, heart rate and sleep all sit on the watch, alongside 120+ sport modes, a 1.52-inch LCD and cycle tracking, a rarity in this group and one of the few places a watch here speaks to women as squarely as men. Charging is a two-hour job, and we did not find ourselves hunting for the cable midweek.

The screen is where the money went elsewhere. Next to the AMOLED on our top pick this LCD looks flat, and notifications are legible rather than crisp. We will accept that for a watch this light, especially one you will wear in bed, because the heavier, brighter watch is the one that ends up on the nightstand. It carries a two-year warranty and comes in an Urban Bronze finish that is more interesting than the usual black.

The reason to look at the Jugeman T91 is the line on the box about ChatGPT, and we will be honest about how we feel: a voice assistant on a watch is a habit, not a specification. If you already talk to your phone, having the same conversation from your wrist is genuinely handy while cooking or driving. If you do not, this becomes a clever way to set a timer.

Underneath the assistant it is a capable big-screen watch. The 1.91-inch HD panel at 320 x 385 is the second largest here, there is 1 GB of memory, 110+ sport modes, oxygen, heart rate, sleep and cycle tracking, Bluetooth calling and IP68 sealing. Battery is rated at seven days, and the pink-gold square case will settle the question faster than any spec: you either want that on your wrist or you do not.

Where it lands for us: this is the pick for someone who wants the assistant and a screen big enough to read a message without squinting. Below the AI badge nothing is a compromise. Calls connect, the display is bright, and a week of battery is a week. The watch earns its place on the hardware; the assistant is the part you have to want.

At 1.47 inches the Mindrose H80 Pro has the smallest screen among our picks, and that is the point. The 1.25-ounce body sits close to the wrist, the curved HD color display is bright enough for a glance in bed, and the feature list runs to 115 sport modes plus oxygen, heart rate, blood pressure and sleep tracking. Call and message notifications come through, there is a cycle reminder, and the watch faces are genuinely changeable rather than fixed to three options.

We think it is the right watch for a slim wrist or for anyone who finds a two-inch slab absurd on their arm. You trade screen real estate for something you forget you are wearing, and the sleep data is better for it. What we cannot yet vouch for is the long run: this is a newer name with less wear behind it, so the design and the three-year manufacturer warranty are doing a lot of the persuading. Keep the receipt either way.

The strap is the first thing to look at on the FITVII HM57. A band that breaks takes the watch off your wrist, and that is the failure this model runs into, sometimes within a couple of months. It is also the easiest failure to plan around, because the band is a 22 mm size and a replacement costs very little.

Everything above the strap is a lot of watch for the tier: a 1.85-inch LCD, Bluetooth calling with AAC audio built in, 120+ sport modes, oxygen, heart rate and sleep tracking, and a two-year warranty. Water resistance is IP67, one meter, which covers rain and splashes but is the least of the ratings in this group, so this is not a swimming watch.

The long run is where it gets uneven. Charging splits: some units go days between charges while others stop taking one within weeks. Blood pressure readings are the other sore spot, with numbers that do not match a cuff at a doctor visit. Heart rate and step data draw far less complaint, which is why we would still put it on a shortlist for a first watch or a spare.

So here is our read: if you want calling on the wrist without spending much, the HM57 does the job, and you should buy a spare band with it. If oxygen trends are the reason you are shopping, put the money toward a watch whose long-run story does not make you nervous. This one is a decent watch with a known weak part, not a health instrument.

A 2.02-inch panel is the biggest screen in this group, and the 85-gram body is what it costs you. We noticed the weight straight away: this is a watch you are aware of on the wrist, fine for reading a message across a room, less fine for wearing to bed. The 240 x 295 resolution across that expanse is also coarser than the size suggests, so text comes out large but not crisp.

The rest of the specification is aimed at the same buyer. Bluetooth 5.2 calling, 110+ sport modes, oxygen, heart rate and sleep tracking, IP68 to 1.5 meters, and a 300 mAh battery rated at five days on a 2.5-hour charge. It runs Android 9.0 and up and iOS 10.0 and up, and setup is quick.

Where we land: this is the pick for someone who wants the biggest display in the group and does not care about sleeping in it. It is also the newest name here with the least behind it, so buy it as a first smartwatch or a spare rather than a long-term health tool. The detail that charmed us is the watch-face library, 350+ faces, which is a lot of fiddling for the money.