Samsung Galaxy Watch 42mm vs Yezz C21
Samsung Galaxy Watch 42mm
Yezz C21
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 900, 2100-
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4G networkLTE-
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GPRSYesUp to 48 kbps
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EDGEYesNo
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Availability
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Oficially announced2018-82016-7
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Status2018-82016-8
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Design
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BuildStainless Steel 316L-
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SIMElectronic SIM card (e-SIM)Dual SIM (Mini-SIM)
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Height45.7 mm113 mm
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Width41.9 mm48.5 mm
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Thickness12.7 mm14.6 mm
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Weight49 g70 g
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PaymentSamsung Pay-
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WaterproofIP68, 50m-
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MIL-STD-810GYes-
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ColorsBlack, Gold; Straps - Black, Grey, Red, Yellow, Purple, Beige, Grey, BrownBlack, Blue, Red, White
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Display
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Display typeSuper AMOLEDTFT
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Physical size1.2 inches1.8 inches
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Resolution360 x 360 pixels128 x 160 pixels
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Pixel density278 ppi114 ppi
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Display colors16777216262144
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ProtectionCorning Gorilla Glass DX+-
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MultitouchYes-
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Display featuresRotating bezel, Always-on display-
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Hardware
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CPUDual-core 1.15 GHz321 MHz
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ChipsetExynos 9110Spreadtrum SC6531DA
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Memory RAM4 GB4 MB
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Internal storage0.75, 1.5 GB4 MB
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Memory card-microSD
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Memory card max-8 GB
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Phonebook-Yes
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Call records-Yes
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OS
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OSTizen-based wearable OS 4.0-
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Main camera
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Primary cameraNoVGA
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Primary camera video-video
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Camera features-No
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration, Polyphonic, MP3
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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USBNomicroUSB 2.0
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Bluetoothv4.2v2.1
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Bluetooth A2DPYes-
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bluetooth LEYes-
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NFCYes-
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GPSYes, with A-GPSNo
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GLONASSYes-
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Features
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Messaging SMS-SMS
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WAP-Yes
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Java-No
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SensorsAccelerometer, barometer, gyro, heart rate-
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Browser
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HTMLNo-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity270 mAh600 mAh
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Battery removableNon-removableRemovable
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Wireless chargingWPC-
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Talk time-3 h
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Standby time72 h180 h
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Selfie camera
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Secondary camera-No
