vivo Y21a vs Oppo A77

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          General Info

          Manufacturer
          vivo Oppo
          Announced
          January 2022 June 2022
          Status
          Coming Soon - January 2022 Coming Soon - June 2022
          Colors
          Midnight Blue, Diamond Glow Ocean Blue, Midnight Black
          Form Factor
          Candybar Candybar
          Dimension
          164.3 x 76.1 x 8 mm
          (6.47 x 3 x 0.31 in)
          163.8 x 75.1 x 8 mm
          (6.45 x 2.96 x 0.31 in)
          Weight
          182 g (6.42 oz) 190 g (6.7 oz)
          SIM Type
          Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
          2G Network
          GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
          3G Network
          HSDPA 850 / 900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
          4G Network
          1, 3, 5, 8, 38, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66
          5G Network
          - 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA
          Messaging
          Build Features
          - Fingerprint Sensor (side-mounted)
          )
          - Fingerprint Sensor (side-mounted)
          IPX4 water resistant

          Hardware and OS

          OS
          Android 11 Android 12
          User Interface
          Funtouch 11.1 ColorOS 12.1
          Processor
          Octa-core 2.0 GHz Cortex-A53, Mediatek MT6762 Helio P22 (12 nm) [Similar] Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55), MediaTek MT6833P Dimensity 810 (6 nm) [Similar]
          GPU
          PowerVR GE8320 [Similar] Mali-G57 MC2 [Similar]
          RAM
          4 GB [Browse Similar] 6 GB [Browse Similar]
          Internal Memory
          64 GB 128 GB
          External Memory
          microSDXC (dedicated slot) microSDXC

          Display

          Type
          HD+ IPS LCD Screen HD+ IPS LCD Screen
          90Hz Refresh Rate
          480 nits (typ), 600 nits (HBM)
          Colors
          16M Colors 16M Colors
          Size
          6.51 inches [Similar] 6.56 inches [Similar]
          Resolution
          720 x 1600 pixels (270 ppi) 720 x 1612 pixels (269 ppi)
          Screen-to-Body Ratio
          81.54% 84.12%
          Multi-Touch
          yes multi touch yes multi touch

          Camera

          Rear Camera
          13 MP + 2 MP [Similar] 48 MP + 2 MP [Similar]
          Flash
          LED Flash LED Flash
          Features
          13 MP, f/2.2, (wide), PDAF
          2 MP, f/2.4, (macro)
          48 MP, f/1.7, 26mm (wide), PDAF
          2 MP, f/2.4, (depth)
          HDR, Panorama
          Video
          1080p@30fps 1080p@30fps
          Front Camera
          8 MP, f/1.8, (wide)
          HDR
          1080p@30fps [Similar]
          8 MP, f/2.0, 26mm (wide)
          Panorama
          1080p@30fps [Similar]

          Multimedia

          3.5mm Jack
          3.5 mm jack yes 3.5 mm jack yes
          Radio
          FM radio No
          Games
          Yes + Downloadable Yes + Downloadable
          Loud Speaker
          loudspeaker yes loudspeaker

          Connectivity and Data Rate

          GPRS
          Yes Yes
          Edge
          Yes Yes
          3G
          HSPA 42.2/5.76 Mbps, LTE HSPA 42.2/5.76 Mbps, LTE, 5G
          Bluetooth
          5.0, A2DP, LE 5.3, A2DP, LE, aptX HD
          Wi-Fi
          Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
          USB
          USB Type-C 2.0, USB On-The-Go USB Type-C 2.0, USB On-The-Go
          GPS
          Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, BDS, GALILEO, QZSS
          Browser
          Yes Yes

          User Memory

          Internal
          64 GB, 4 GB RAM 128 GB, 6 GB RAM UFS 2.2
          Expandable Storage
          microSDXC (dedicated slot) microSDXC
          USB OTG
          Supported Supported

          Sensors

          Fingerprint
          fingerprint supported fingerprint supported
          Proximity Sensor
          proximity sensor present proximity sensor present
          Accelerometer Sensor
          accelerometer sensor present accelerometer sensor present
          Magnetic-field Sensor (Compass)
          magnetic field sensor present magnetic field sensor present
          Gyroscope Sensor
          gyroscope sensor not present gyroscope sensor not present
          NFC
          NFC not supported NFC supported

          Battery

          Type
          Non-removable Li-Po Battery
          Fast battery Charging 18W
          Non-removable Li-Po Battery
          Fast battery Charging 33W, 53% in 30 min (advertised)
          Capacity
          5000 mAh 5000 mAh
          Stand by
          - -
          Talk Time
          - -

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