The REM, also known as rapid eye movement, period is the basis for the normal biological rhythm and life-sustaining of mammals. It accounts for about 20%-25% of the entire night’s sleep cycle. It is characterized by rapid eye movement, low-amplitude mixed-frequency EEG activity, and muscle tension relaxation. The rapid eye movement phase is the sleep phase related to dreams in the sleep cycle. Huami is a smartwatch launching machine right now, and its latest comes in the form of the Amazfit GTS 2 Mini. Yes, that's another version of the GTS 2, which only launched in October 2020. Accuracy GPS Mode: Turn on heart rate monitoring and GPS movement (dual-frequency, all satellites).

But the Amazfit GTS 2 Mini solves that. It essentially offers the same experience at a killer price point. If you want the music storage and smart assistant then go for the larger GTS 2. But these are absolutely not worth the hike in price, and the GTS 2 Mini feels like great value. Until we've completed our testing of Amazfit's latest smartwatch, we take a look at how the specs and features list, which may help you decide between the two. Sleep monitoring: can record nighttime sleep and naps during daytime. When it detects that the wearer is asleep between midnight and 6am, the sleep time between 6pm of the previous day and 11am can be recorded as night sleep time; sleep between 11am and 6pm lasting more than 20 minutes is recorded as a nap. Sleep lasting less than 20 minutes is not recorded. The HUNT Fitness Study indicates that people who maintain a PAI score of 100 or higher show lower risk of hypertension, heart disease, and type-2 diabetes. HUNT Fitness Study: This study was conducted by Professor Ulrik Wisloff of the Faculty of Medicine, Norwegian University of Science and Technology. It lasted for more than 35 years and had more than 230,000 participants. To use this function, all-day heart rate monitoring must be enabled. In our review we criticized the Amazfit GTS 2 for being too expensive, compared to rivals. There are shortcomings around the app experience in comparison to Fitbit and Apple, but that's easy to forgive at a price point, and less so at .Typical usage scenario: Heart rate is always on, sleep monitoring enabled; 150 pushed messages a day lighting up the screen display, raise wrist to see watch time 30 times, bright screen operations for 5 minutes; exercise 3 times a week, GPS running for 30 minutes. Due to the device's storage limit, only a maximum of 20 membership cards can be added to the same account. Supported codes include Code 128, Code 39, and QR codes; support for UPC A, EAN 13, and EAN 8 will be added via OTA update. Basic usage scenario: Turn off the Bluetooth connection, heart rate and other functions of the phone, and only lift the wrist to turn on the screen 100 times a day.

This product and the Zepp App are not medical devices and cannot be used for medical purposes, or as basis for diagnosis of any medical condition. Detection results are provided for reference only. Please consult professional medical institutions if you feel unwell. Always-on Display: When the screen is illuminated, it displays system content. When the screen is in standby mode, it displays the time. This function requires users to manually set "Always-on Display". The user can switch on or off this feature through the watch or Zepp App. Clearly, if you want a more feature-rich smartwatch experience, it's the GTS 2, not the GT2 Mini you go for here. The 24-hour automatic heart rate detection feature requires the user to set and turn on the "heart health detection" feature in the app, and the minimum value can be set to 1 minute; this feature cannot be used for medical purposes or as a basis for medical diagnosis. For abnormally elevated heart rate alerts, when the set alert value is reached and there is no obvious activity in the last 10 minutes, the watch will vibrate. The detection results are provided for reference only. Please consult professional medical institutions if you feel unwell. Heart rate measurement cannot be performed while swimming, and the measurement accuracy may be affected by factors such as skin color, exercise type, and environmental temperature; We are going to put those two watches aside just for now and focus on the GTS 2 Mini. How does it compare to the GTS 2? What features do you lose or maybe even gain?These are never going to be Apple Watch-level build quality, but for the price, you'll still get something you'd actually want to wear.