| S53 | 
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| Hardware |
| MCU | RTL8763EWE |
| G-SENSOR | STK8321 |
| Heart rate sensor | LC09A |
| Touch chip | Hynitron 816D |
| Touch screen | Full screen touch |
| screen size | 1.39‘’ |
| screen material | TFT |
| Display resolution | 360*360 |
| touch screen technology | G+F |
| Flash | 128M |
| Bluetooth version | BLE5.2 |
| bluetooth antenna | FPC type |
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| suona | AAC original factory（5magnetic） |
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| microphone | 6027 High sensitivity microphone |
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| PCB | 6-layer board |
| Battery /charging method |
| battery size | 65mm*20mm*20mm |
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| battery capacity | 260mAh |
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| battery material | Pure cobalt battery |
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| charging time | 2h |
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| Use time | 5-7 days |
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| Standby time | 25-30 d |
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| charge management | Typical charging current value 120 or 160mA |
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| Battery Cycles | 450 cycles |
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| Structure |
| Physical buttons | 2 buttons, aluminum alloy anodizing process |
| waterproof level | IP67 |
| Shell material | Zinc alloy, ABS+PC |
| Shell material process | Zinc alloy vacuum plating/ABS+PC material |
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| strap material | silica gel |
| Buckle material | 303Stainless steel |
| How to assemble the strap | switch |
| watch size (L x W x H) mm | 44.7*37.7*10.5mm |
| Strap size (length) | 22mm*122.5mm |
| Strap Size (Short) | 22mm*76mm |
| Heart rate lenses | PC sheets |
| Function |
| Heart rate monitoring | Resting Heart Rate |
| blood pressure monitoring | support |
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| Blood oxygen monitoring | support |
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| body temperature monitoring | NO |
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| breathing training | support |
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| respiration rate | support |
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| female menstrual cycle | menstrual period, ovulation period, safe period |
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| state | Step count, calories, distance |
| sport mode | Built in 8+1 sports modes, including walking, running, hiking, cycling, skipping rope, basketball, badminton, football, yoga (as push) |
| Audio Bluetooth | One-click link |
| audio switch | Turn on connected audio, turn off disconnected audio |
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| dial pad | support |
| call records | support |
| contact | support |
| incoming call | support |
| answer the call | Connect audio for up to 5 hours of music playback and maximum volume for up to 5 hours |
| call rejection | Store up to 8 messages |
| play music | support |
| message push | support |
| Sedentary reminder | support |
| alarm clock reminder | support |
| Turn your wrist to brighten the screen | support |
| backhand screen off | support |
| Do Not Disturb Mode | support |
| Shake to take a photo | support |
| find phone | support |
| bright adjustment | Comes with 5 dials and 1 custom dial |
| music control | support |
| APP massive dial | support |
| Step count | support |
| countdown | support |
| stopwatch | support |
| goal achievement reminder | support |
| sleep monitoring | support |
| Language |
| APP Supported languages | Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean |
| APP support software push | WeChat 、QQ、lnstagram、YouTube、Messenger、Gmail、Snapchat、Facebook、Twitter、WhatsAPP、Pinterest、Hangouts、Linkedin、SKype、Tumbir、Viber、Line、Google+、Flickr、VK、KaKa Talk、 |
| Supported languages on the wristband | Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean, Dutch, Hindi |
| Message push support language | English, Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, Portuguese, Spanish, Arabic, Korean, Dutch, Hindi, Armenian, Syrian Bengali, Sikh, Gujarati, Oriya, Telugu, Lao, Burmese, Georgian, Korean, Ethiopian, Cherokee, Mongolian, Javanese, Cambodian |
| APP/OS |
| APP | Fit Cloud Pro |
| Android | Above 4.4 |
| IOS | Above 9.0 |
| Watch color |
| schwarz | Schwarz+Schwarz
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| golden | golden+golden |
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| Outer packaging |
| Packaging size | 28*8*2cm |
| Machine weight (including strap) | 127.1g |
| carton size | 575*475*200mm |
| FCL quantity | 100pcs |
| FCL weight | 13.5kg |
| working environment |
| Operating temperature | -20℃ to 60℃ |
| charging temperature | 0℃ to 40℃ |
| Working humidity | 10%-90%RH (non-condensation) |
| Storage temperature | -30℃ to 80℃ |
| Relative humidity | 5%-90%RH (non-condensation) |
