First, the real waterproof: the real 5TM and 50m waterproof machine in the industry adopts 5TM waterproof device, and the key is waterproof sealing; The speaker is drained with one key (15s), which can quickly restore audio after swimming; Through Huawei's strict waterproof test, the industry's first 50m waterproof children's watch supports swimming mode (duration, calories, etc. ) *, and swimming is more interesting. It supports underwater key photography and video recording, and you can experience a different kind of wonderful * 50m waterproof: 5ATM protection level conforming to ISO228 10:20 10 standard, waterproof to 50m, and can be used for water activities in shallow water areas such as swimming pools or seaside swimming. Not suitable for diving, diving, hot shower, hot spring, sauna, other wading or high-speed underwater deep-water activities. After being used in seawater, it is recommended to rinse with clean water and dry. When children swim and go into the sea, please pay attention to safety and be accompanied by people who are familiar with water. Time is not too long. Please refer to official website for the precautions of product waterproofing. * The swimming function does not support viewing data in the Smart Care APP for iOS version, and only supports viewing on the watch side; The current algorithm only supports the calorie calculation of breaststroke, and other strokes are supported by subsequent OTA upgrades. Second, the front and rear double camera: high-definition video call, large wide-angle and large aperture fun photo front: 5 million pixels 85 wide-angle, F2.2 large aperture rear: 8 million pixels 84 wide-angle, F2.0 large aperture AF automatic zoom front and rear double camera video call, free to switch pictures. Huawei can talk continuously in the whole scene without opening the smart care APP. Huawei's mobile phones, tablets and smart screens can directly call children's watches for audio and video calls through continuous calls. Voice photography: let children experience the fun of photography. Intelligent object recognition: the rear camera aims at the object for three seconds, automatically and intelligently recognizes various common objects, and automatically plays relevant knowledge points to explore the world. Interesting photo *(OTA support): The front camera supports dynamic stickers to make photos more interesting. Slow-motion camera: 120fps slow-motion camera experience wonderful "slow" Third, dual-frequency positioning: Huawei flagship machine positioning chip with the same model, dual-frequency positioning, five-mode satellite, 1 1 heavy AI positioning, more accurate positioning, dual-frequency positioning: (GPS L 1/L5, Galileo/ QZSS L 1/L5), a five-mode constellation with stronger anti-interference: GPS+ Beidou +GLONASS+ Galileo +QZSS, and the above five modes are located simultaneously; There are at most 144 acquisition channels and 1 17 tracking channels in the industry, and 1 1 relocation of satellite search and tracking is more: except for five-mode satellite positioning; There are also WLAN positioning, base station positioning and indoor positioning; A-GPS, accelerometer-assisted positioning, SOS light-assisted positioning. AI positioning: Huawei NLP positioning algorithm, multi-source map fusion positioning, intelligent access to the best positioning effect, for common locations, the more accurate the better. All-weather footprint recording: high-frequency, more accurate and low-power footprint recording IV. Worry-free battery life: low-power dual-core architecture chip, 800mAh high-density battery, diversified intelligent power saving, magnetic fast charging, worry-free battery life of 800mAh (typical), Huawei diversified smart watch power saving technology, longer battery life, typical scene 2-3 days, super power saving mode for 5 days, independent low-noise amplifier, stronger signal, clearer and more stable call. 4G full netcom supports 5-mode 20-frequency *, more frequency bands, more stable connection, stronger global roaming coverage, China Mobile, China Unicom and VoLTE networks *, and clearer calls. The industry's first RF-independent low-noise amplifier improves signal reception. Improve communication ability in bad signal environment. Rheinland certification: German Rheinland T_V wearable device use safety certification: German Rheinland T_V wearable device use safety certification, including waterproof, battery, material, reliability, network security, etc. 90+ certification seven. Exercise mode: swimming, skipping rope, and statistics of moderate and high-intensity activities refer to the National Physical Health Standard for Teenagers to evaluate the performance of skipping rope. Six-axis sensor+self-developed skipping algorithm. Intelligent detection of skipping times, automatic identification of high-intensity activities to help improve children's skipping performance, time record * step counting ranking and praise * high-intensity activity detection: record the exercise time when running, skipping and swimming reach a certain intensity; This function requires subsequent OTA upgrade support; It is not supported to view data in Smart Care APP for iOS, but only eight. Watch-side1GB+16GB:16GB LPDDR 4 memory and16GB large storage make the operation smoother. 9.NFC: Support access cards and bus cards, which is more convenient to swipe.