Realme C51 vs Xiaomi Redmi K40S

Realme C51
Realme C51
Xiaomi Redmi K40S
Xiaomi Redmi K40S
Realme C51
Xiaomi Redmi K40S
  • Network
  • 2G network
    GSM 850, 900, 1800, 1900
    GSM 850, 900, 1800, 1900; CDMA 800
  • 3G network
    HSDPA 850, 900, 2100
    HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
  • 4G network
    LTE frequency band 1, 3, 5, 8, 38, 40, 41 - Africa, India; 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - Asia
    LTE frequency band 1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
  • 5G network
    -
    5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
  • HSDPA speed
    42.2 Mbps
    42.2 Mbps
  • HSUPA speed
    5.76 Mbps
    5.76 Mbps
  • LTE speed
    LTE-A, 150 Mbps download, 51 Mbps upload
    LTE-A
  • GPRS
    Yes
    Yes
  • EDGE
    Yes
    Yes
  • Availability
  • Status
    2023-08
    2022-03
  • Oficially announced
    2023-07
    2022-03
  • Design
  • Build
    Glass front, plastic frame, plastic back
    Glass front (Gorilla Glass 5), plastic back
  • SIM
    Dual SIM (Nano-SIM, dual stand-by)
    Dual SIM (Nano-SIM, dual stand-by)
  • Height
    167.2 mm
    163.2 mm
  • Width
    76.7 mm
    76 mm
  • Thickness
    8 mm
    7.7 mm
  • Weight
    186 g
    195 g
  • Splash resistant
    -
    Yes
  • Colors
    Black, Green
    Black, Blue, Gray, Green
  • Display
  • Display type
    IPS LCD
    AMOLED
  • Physical size
    6.74 inches
    6.67 inches
  • Resolution
    720 x 1600 pixels
    1080 x 2400 pixels
  • Pixel density
    260 ppi
    395 ppi
  • Display colors
    16777216
    16777216
  • Protection
    Scratch resistant, 2.5D curved glass screen
    Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5
  • Display features
    90Hz, 560 nits (peak)
    120Hz, HDR10+, 1300 nits (peak)
  • Hardware
  • CPU
    Octa-core
    Octa-core
  • CPU
    Dual-core 1.8 GHz Cortex-A75
    Single-core 3.2 GHz Kryo 585
  • CPU(second)
    Hexa-core 1.8 GHz Cortex-A55
    Triple-core 2.42 GHz Kryo 585
  • CPU(third)
    Quad-core 1.80 GHz Kryo 585
  • Chipset
    Unisoc Tiger T612
    Qualcomm SM8250-AC Snapdragon 870 5G
  • GPU
    Mali-G57
    Adreno 650
  • Memory RAM
    4 GB
    6, 8, 12 GB
  • Internal storage
    64, 128 GB
    128, 256 GB
  • Memory card
    microSD, microSDHC, microSDXC
    No
  • Memory card max
    2 TB
    -
  • Storage
    eMMC 5.1
    UFS 3.1
  • OS
  • OS
    Android 13, Realme UI T
    Android 12, MIUI 13
  • Main camera
  • Camera type
    Dual
    Triple
  • Main camera
    (wide) , 50 MP, f/1.8 , 27 mm, 1/2.76" , 0.64 µm
    (wide) , 48 MP, f/1.8 , 1/2" , 0.8 µm
  • (depth) , 0.08 MP, f/3.0
    (ultrawide) , 8 MP, 119˚
  • (macro) , 2 MP, f/2.4
  • Primary camera resolution
    8120 x 6180 pixels
    8000 x 6000 pixels
  • Primary camera video
    1080p@30fps
    4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS
  • Primary camera flash
    LED flash
    dual-LED dual-tone flash
  • Camera features
    Autofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus
    Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus
  • Selfie camera
  • Selfie camera type
    Single
    Single
  • Selfie camera
    (wide) , 5 MP, f/1.8 , 28 mm, 1/5" , 1.12 µm
    (wide) , 20 MP
  • Selfie camera resolution
    3264 x 2448 pixels
    -
  • Selfie camera features
    Face unlock, face detection
    Face unlock, HDR
  • Selfie camera video
    720p@30fps
    1080p@30/120fps
  • Sound
  • 3.5mm jack
    Yes
    No
  • Loudspeaker
    Yes
    Yes, with stereo speakers
  • Earpiece
    Yes
    Yes
  • Multimedia
  • Radio
    FM Radio
    No
  • Connectivity
  • WLAN
    Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
    Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
  • WLAN WiFi Hotspot
    -
    Yes
  • WLAN WiFi Direct
    -
    Yes
  • WLAN WiFi Dual Band
    Yes
    Yes
  • USB
    Type-C 2.0
    Type-C 2.0
  • USB On-The-Go
    -
    Yes
  • Bluetooth
    v5.0
    v5.2
  • Bluetooth A2DP
    Yes
    Yes
  • bluetooth LE
    Yes
    Yes
  • NFC
    Yes
    Yes
  • GPS
    Yes, with A-GPS
    Yes, with A-GPS
  • GLONASS
    Yes
    Yes
  • GALILEO
    Yes
    Yes
  • BDS
    -
    Yes
  • QZSS
    -
    Yes
  • NavIC
    -
    Yes
  • Features
  • Sensors
    Accelerometer, compass, fingerprint, proximity
    Accelerometer, color spectrum, compass, fingerprint, gyroscope, proximity
  • Browser
  • HTML
    HTML5
    HTML5
  • Battery
  • Battery type
    Li-Po
    Li-Po
  • Battery capacity
    5000 mAh
    4500 mAh
  • Battery removable
    Non-removable
    Non-removable
  • Fast battery charging
    SuperVOOC, 33W (50% in 28 min)
    Quick Charge 3+, 67W (100% in 38 min)
  • Tests and performance
  • Antutu
    220000 (v9)
    715000 (v9)
  • Geekbench(single-core)
    397 (v5.2)
    983 (v5.2)
  • Geekbench(multi-core)
    1391 (v5.2)
    3362 (v5.2)
  • SAR value
  • SAR(head)
    1.18 W/kg
    -
  • SAR(body)
    0.78 W/kg
    -
  • Cost
  • Price
    160 USD
    290 USD

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