Some smartwatches have built-in temperature sensors, using thermistors or infrared sensors to measure your body temperature. They won't let you take on-demand temperatures, so they won't replace your thermometer. But smartwatch brands can use this data to show trends in your body's health, stress, and sleep quality, as well as predict your menstrual cycle.
Temperature sensors in smartwatches have become more common, typically in mainstream Android and Apple smartwatches, but also in some fitness watches. You'll see plenty of overlap with the best smartwatches for blood oxygen tracking, as our favorite picks prioritize accurate health sensors of all types, giving you reliable information on your body's current health.
Track your body temperature with these excellent smartwatches
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Best overall
The Google Pixel Watch 4 has a suite of accurate Fitbit sensors, but it added a new skin temperature sensor that establishes a typical body temperature range after three nights of sleep and then "detects when you're out of your personal range." It then warns if "you're out of your personal range" in a given night, signalling possible illness. Otherwise, it has a full suite of sensors, including a unique cEDA sensor that tracks skin sweat for stress data, Loss of Pulse detection, and an enhanced sleep algorithm. There's even a new Fitbit Personal Health Coach that analyzes your health trends (such as skin temperature) using Gemini smarts, though it's still in beta.
Best for continuous data
The Withings ScanWatch 2 is the rare wearable to measure skin temperature constantly — not just at night. The "TempTech24/7 Module," as the name implies, measures your temperature at all times with a thermistor and heat flux, sending notifications of potential illnesses or period predictions. It even creates workout temperature zones, warning if you've spent too long in the "Overheating Zone." You can even check your last reading and baseline variation in the display cutout. The only reason the ScanWatch 2 isn't our top recommendation is because it's not a "smartwatch," only a hybrid watch, but its health data and month-long battery life are still impressive.
Best battery life and fitness tools
The Garmin Venu 4 sports the brand's most reliable fifth-generation Elevate sensor suite, which includes skin temperature and ECG readings. Where most of our smartwatch picks last 1–2 days per charge, the Venu 4 lasts 10–12 days. It introduced Garmin's latest Health Status tool, which measures skin temp, HR, HRV, SpO2, and breathing across 3–4 weeks to establish a baseline, then warns you whenever you have an "outlier" reading every night. While most Garmin watches focus on fitness, the Venu 4 is more balanced for those who care as much about health tracking. Choose the Venu 3, which also has skin temperature data, if the Venu 4 is a bit too expensive.
Best for iPhone owners
Apple originally tailored its skin temperature sensors for cycle tracking alone, but it eventually expanded the feature to create a nightly graph of your wrist temperature, comparing the results against your baseline down to the hundredth decimal. It even has a second water temperature sensor for real-time stats while diving or snorkeling. The Apple Watch is the best iOS option for true wearable apps and smarts, and it finally hits 24 hours per charge, making it more reliable for sleep tracking. It also has other health stats you'll appreciate, most notably its hypertension alerts.
Best Wear OS alternative
The Pixel Watch 4's health insights depend on a Fitbit Premium subscription. The Galaxy Watch 8 also sports a temperature sensor and some Galaxy AI insights, but so far doesn't require a subscription. You'll see your nightly skin temp range in your sleep summary. Samsung also offers your typical HR, stress, ECG, and AFib detection data, as well as some unique data points like sleep apnea detection, antioxidant index for nutritional health, vascular load for heart health, and body composition analysis of your fat and muscle percentages. The Watch 8 is also quite light and skinny, making it well-suited for sleep tracking.
Best cheap option
Most of our recommendations fall into the typical $300–400 price range for a good smartwatch, as skin temperature data is typically associated with higher-end devices. The Amazfit Active 2 is a budget fitness watch that still offers HR, stress, SpO2, breathing rate, and skin temperature data, along with other health data like a readiness score and menstrual cycle tracking. It lasts about five days per charge, with a 1.32-inch, 2,000-nit AMOLED display for your notifications and hundreds of sports modes.
Best Fitbit alternative
Originally the expensive flagship of the Fitbit lineup, the Fitbit Sense 2 has taken a backseat to the Pixel Watch series, which stole all its sensors before improving on them. But that means the older Sense 2 is frequently on sale today, with still-accurate health sensors, a thin and lightweight design, 3X the battery life of a Pixel Watch 4, and compatibility with both Android and iOS. Its skin temperature sensor measures variation during sleep sessions, and its Fitbit app will offer the same Personal Health Coach AI insights when it launches in 2026.
Ultimate battery life for Wear OS
If you're looking for a Wear OS watch with the best battery life, the Samsung Galaxy Watch Ultra is the perfect match. Featuring the same set of sensors as the Watch 7, including temperature monitoring, the Ultra model has a rugged, titanium bezel, chunky buttons, and supports GPS for offline navigation.
Grab the best smartwatch with a temperature sensor
Before diving into our top picks, you might have noticed that most of the best smartwatches with a temperature sensor overlap with the best smartwatches for fitness. So, you're getting plenty of bang for your buck with these models beyond just temperature sensing.
If you're focused on your health and would like to track various metrics, the Fitbit Sense 2 is a fantastic pick. It has a skin temperature sensor as well as SpO2 and heart rate monitors. You get plenty of sports and exercise tracking options and the app support is decent. It even has NFC for payments via Google Wallet and the battery life is wonderful.
The Samsung Galaxy Watch 8 is, of course, a top choice for Android users who want the best of the best on their wrist, from notifications to health, wellness, and activity tracking. Plus, you get a stellar design and perfect pairing with a Samsung Galaxy smartphone. You can say the same with the Google Pixel Watch 4, or even the previous gen Google Pixel Watch 3, both solid options not just for Google Pixel phone owners but any Android device owner. Of course, if you own an iPhone, the Apple Watch Series 10 will likely be your choice of smartwatch with a temperature sensor.
All the options on this list, however, are worth considering. While they might be a bit more expensive than others, that's because smartwatches with built-in temperature sensors tend to be the premium models in the line-up. But if you're curious about your body temperature, chances are you want to know everything you can about your health. That means you're likely interested in data from other sensors, too, which all these models offer.
You can't put a price on keeping track of your health, so these ones are all worth every penny. If you wish to save a fair bit, it's a good idea to keep an eye out on smartwatch deals.
