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Apple Watch 40mm Series 4
Compare Apple Watch 40mm Series 4 and UMIDIGI S2 Pro

Apple Watch 40mm Series 4 vs UMIDIGI S2 Pro

Apple Watch 40mm Series 4
Apple Watch 40mm Series 4
UMIDIGI S2 Pro
UMIDIGI S2 Pro
Apple Watch 40mm Series 4
UMIDIGI S2 Pro
  • Network
  • 2G network
    GSM 850, 900, 1800, 1900
    GSM 850, 900, 1800, 1900
  • 3G network
    HSDPA
    HSDPA 850, 900, 1900, 2100
  • 4G network
    LTE
    LTE frequency band 1(2100), 3(1800), 7(2600), 18(800)
  • LTE speed
    -
    LTE, Cat6, 301 Mbps download, 51 Mbps upload
  • GPRS
    Yes
    Yes
  • EDGE
    Yes
    Yes
  • Availability
  • Oficially announced
    2018-9
    2017
  • Status
    2018-9
    2017
  • Design
  • Build
    Stainless Steel frame; all-ceramic/sapphire crystal back
    Aluminium alloy
  • SIM
    Electronic SIM card (Apple e-SIM)
    Dual SIM (Nano-SIM/Nano-SIM(microSD))
  • Height
    40 mm
    158.1 mm
  • Width
    34 mm
    74.6 mm
  • Thickness
    10.7 mm
    8.8 mm
  • Weight
    40 g
    186 g
  • Waterproof
    50m
    -
  • Colors
    Black, Gold, Silver
    Black, Red
  • Display
  • Display type
    LTPO AMOLED
    IPS capacitive touchscreen
  • Physical size
    1.57 inches
    6 inches
  • Resolution
    394 x 324 pixels
    1080 x 2160 pixels
  • Pixel density
    326 ppi
    402 ppi
  • Display colors
    16777216
    16777216
  • Protection
    Sapphire crystal glass
    Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 4
  • Multitouch
    Yes
    Yes
  • Display features
    3D Touch display, 1000 nits
    -
  • Hardware
  • CPU
    -
    Octa-core
  • CPU
    Dual-core
    Quad-core 2.6 GHz Cortex-A53
  • CPU(second)
    quad-core 1.6 GHz Cortex-A53
  • Chipset
    Apple S4
    MediaTek Helio P20(MT6757CD)
  • GPU
    PowerVR
    Mali-T880 MP2
  • Internal storage
    16 GB
    128 GB
  • Memory RAM
    -
    6 GB
  • Memory card
    -
    microSD, microSDHC, microSDXC
  • Memory card max
    -
    256 GB
  • Storage
    -
    eMMC 5.1
  • OS
  • OS
    watchOS 5.0
    UMI OS(Android 7.0 Nougat)
  • Main camera
  • Camera type
    -
    Dual
  • Primary camera
    No
    -
  • Main camera
    13 MP, 1.133 µm
  • 5 MP
  • Primary camera resolution
    -
    4160 x 3120 pixels
  • Primary camera video
    -
    2160@30fps
  • Primary camera flash
    -
    quad-LED flash
  • Camera features
    -
    Autofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
  • Sound
  • 3.5mm jack
    No
    No
  • Loudspeaker
    Yes
    Yes
  • Notifications
    Vibration; Ringtones
    -
  • Multimedia
  • Radio
    No
    -
  • Radio FM
    -
    FM radio
  • Connectivity
  • WLAN
    Wi-Fi 802.11b, 802.11g, 802.11n
    Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5 GHz
  • WLAN WiFi Hotspot
    -
    Yes
  • WLAN WiFi Direct
    -
    Yes
  • Wi-Fi display
    -
    Yes
  • WLAN WiFi Dual Band
    -
    Yes
  • USB
    No
    Type-C reversible connector
  • USB On-The-Go
    -
    Yes
  • Bluetooth
    v5.0
    v4.1
  • Bluetooth A2DP
    Yes
    Yes
  • bluetooth LE
    Yes
    -
  • NFC
    Yes
    -
  • GPS
    Yes, with A-GPS
    Yes, with A-GPS
  • GLONASS
    Yes
    Yes
  • GALILEO
    Yes
    -
  • QZSS
    Yes
    -
  • Features
  • Sensors
    Accelerometer, barometer, gyro (second gen), heart rate
    Accelerometer, compass, fingerprint, hall, light, proximity
  • Browser
  • HTML
    No
    HTML5
  • Battery
  • Battery type
    Li-Ion
    Li-Po
  • Battery capacity
    270 mAh
    5100 mAh
  • Battery removable
    Non-removable
    Non-removable
  • Fast battery charging
    -
    MediaTek Pump Express Plus 2.0
  • Standby time
    18 h
    -
  • Standby time 2G
    -
    480 h
  • Standby time 3G
    -
    480 h
  • Selfie camera
  • Selfie camera
    16 MP
  • Selfie camera resolution
    -
    4608 x 3456 pixels

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