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Oppo A1k vs Samsung Galaxy M21

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Oppo A1k
Total value: 5,09
User opinions: 0
Samsung Galaxy M21
Total value: 5,27
User opinions: 1
Realme 8
Total value: 5,90
User opinions: 0
Realme C21Y
Total value: 5,39
User opinions: 0
Type TouchTouchTouchTouch
Dimensions 154.50 x 73.80 x 8.40 mm159.00 x 75.10 x 8.90 mm160.60 x 73.90 x 7.99 mm164.50 x 76.00 x 9.10 mm
Weight 170.00 g188.00 g177.00 g194.00 g
Display size 6.10" 6.40" 6.40" 6.50"
Display Color / IPS TFT
16M colors
720 x 1560 px (6.10") 282 ppi		Color / Super AMOLED
16M colors
1080 x 2340 px (6.40") 403 ppi		Color / Super AMOLED
16M colors
60 Hz
1080 x 2400 px (6.40") 411 ppi		Color / IPS TFT
16M colors
60 Hz
720 x 1600 px (6.50") 270 ppi
Display protection
Corning Gorilla Glass
Buy screen protector icon_info
No
Buy screen protector icon_info
No
Buy screen protector icon_info
Corning Gorilla Glass
Buy screen protector icon_info
Additional display NoNoNoNo
Protection of the secondary display NoNoNoNo
Talk time (max.) No data4G: 2940 min. (49.0 h)No dataNo data
Playback time (max.) ndAudio: 131 h (5.5 days)
Video: 29 h (1.2 days)		ndnd
Internet browsing time (max.) ndWiFi: 22 h (0.9 days)
4G: 22 h (0.9 days)		ndnd
Standard battery Li-Ion 4000 mAhBuy powerbank icon_infoLi-Ion 6000 mAhBuy powerbank icon_infoLi-Ion 5000 mAhBuy powerbank icon_infoLi-Po 5000 mAhBuy powerbank icon_info
Quick battery charging NoFast ChargingYesYes
Wireless battery charging NoNoNoNo
Internal memory 32 GB64 GB64 GB, 128 GB32 GB, 64 GB
End-user memory No data49.5 GBNo data44 GB
RAM memory 3 GB, 2 GB4 GB4 GB, 6 GB, 8 GB3 GB, 4 GB
Memory cards Yes
microSD, microSDHC, microSDXC		Yes
microSD, microSDHC, microSDXC
up to 512 GBBuy memory card icon_info		Yes
microSD, microSDHC, microSDXC		Yes
microSD, microSDHC, microSDXC
up to 256 GBBuy memory card icon_info
Operating system Android 9.0 PieAndroid 10Android 11Android 11
Interface ColorOS 6.0One UI -realme UI
Processor MediaTek Helio P22 MT6762Samsung Exynos 9611MediaTek Helio G95 MT6785Unisoc Tiger T610 UMS512
Processor clock 2000 MHz2300 MHz2050 MHz1800 MHz
GPU PowerVR GE8320 @650 MHzARM Mali-G72 MP3ARM Mali-G76 MC4 @900 MHzARM Mali G52 MP2 @614 MHz
Touchscreen YesYesYesYes
SAR (10g) No data1,13 W/kgNo dataNo data
DualSIM YesYesYesYes
SIM cards standard DualSIM(nanoSIM, nanoSIM) DualSIM(nanoSIM, nanoSIM) DualSIM(nanoSIM, nanoSIM) DualSIM(nanoSIM, nanoSIM)
DualSIM mode dual standbydual standbydual standbydual standby
Hybrid DualSIM NoNoNoNo
Announced 2Q 20191Q 20201Q 20212Q 2021
Other names CPH1923SM-M215F/DS; SM-M215F/DSNRMX3085RMX3261; RMX3263
GSM frequencies 850 900 1800 1900 850 900 1800 1900 850 900 1800 1900 850 900 1800 1900
UMTS 850 900 2100 850 900 1900 2100 850 900 2100 850 900 2100
LTE standard FDD LTE: 2600, 2100, 1800, 900, 850, 800, 700
TDD LTE: 2600, 2500, 2300		FDD LTE: 2600, 2100, 1800, 900, 850, 800
TDD LTE: 2600, 2500, 2300		FDD LTE: 2600, 2100, 1800, 900, 850, 800, 700
TDD LTE: 2600, 2500, 2300		FDD LTE: 2600, 2100, 1800, 900, 850, 800, 700
TDD LTE: 2600, 2500, 2300
Standard 5G No dataNoNoNo
CDMA NoNoNoNo
Standard TD-SCDMA NoNoNoNo
UMA NoNoNoNo
A D V E R T I S E M E N T
CAMERAS - BACK

CAMERAS - BACK

First camera YesYesYesYes
Camera type No dataStandardStandardStandard
Photo sensor model No dataNo dataOmniVision OV64BNo data
Photo matrix 8 Mpx48 Mpx64 Mpx13 Mpx
Sensor size No data1/21/2No data
Pixel size No dataNo data0,7 µm1,12 µm
Resolution No data8000x6000 px9248x6944 pxNo data
Optical zoom NoNoNoNo
Digital zoom No data4xNo data4x
Number of lenses No dataNo data65
Field of view No data80 °No dataNo data
Focal length No data26 mmNo dataNo data
Flash Yes LEDYes LEDYes LEDYes LED
Dual-colour LED flash NoNoNoNo
Video resolution 1920x1080 px3840x2160 px3840x2160 px1920x1080 px
Video formats H.263, H.264, MPEG4H.264, H.265, MPEG4 - 30 fpsH.264, H.265, MPEG4 - 30 fpsH.263, H.264, MPEG4 - 30 fps
Additional f/2.0AF, f/2.0AF, f/1.79AF, f/2.2
Second camera NoYesYesYes
Camera type ndDepth of fieldWide-angleMacro
Photo matrix nd5 Mpx8 Mpx2 Mpx
Pixel size ndNo data1,12 µmNo data
Optical zoom ndNoNoNo
Number of lenses ndNo data53
Field of view ndNo data119 °No data
Flash ndYes LEDYes LEDYes LED
Dual-colour LED flash ndNoNoNo
Video formats ndH.264, H.265, MPEG4 - 30 fpsH.264, H.265, MPEG4 - 30 fpsH.263, H.264, MPEG4 - 30 fps
Additional ndFF, f/2.2FF, f/2.25FF, f/2.4
Third camera NoYesYesYes
Camera type ndWide-angleMacroDepth of field
Photo matrix nd8 Mpx2 Mpx2 Mpx
Sensor size nd1/4No dataNo data
Pixel size nd1,12 µm1,75 µmNo data
Resolution ndNo data1600x1200 pxNo data
Optical zoom ndNoNoNo
Number of lenses ndNo data33
Field of view nd123 °No dataNo data
Focal length nd12 mmNo dataNo data
Flash ndYes LEDYes LEDNo
Dual-colour LED flash ndNoNoNo
Video formats ndH.264, H.265, MPEG4 - 30 fpsH.264, H.265, MPEG4 - 30 fpsH.263, H.264, MPEG4 - 30 fps
Additional ndFF, f/2.2FF, f/2.4FF, f/2.4
Fourth camera NoNoYesNo
Camera type ndndDepth of fieldnd
Photo sensor model ndndOmniVision OV64Bnd
Photo matrix ndnd2 Mpxnd
Pixel size ndnd1,75 µmnd
Resolution ndnd1600x1200 pxnd
Optical zoom ndndNond
Number of lenses ndnd3nd
Flash ndndYes LEDnd
Dual-colour LED flash ndndNond
Video formats ndndH.264, H.265, MPEG4 - 30 fpsnd
Additional ndndFF, f/2.4nd
CAMERAS - FRONT

CAMERAS - FRONT

First camera YesYesYesYes
Camera type No dataPortraitNo dataPortrait
Photo sensor model No dataNo dataSony IMX471No data
Photo matrix 5 Mpx20 Mpx16 Mpx5 Mpx
Sensor size No dataNo data1/3No data
Pixel size No dataNo data1 µmNo data
Resolution No dataNo data4608x3456 pxNo data
Optical zoom NoNoNoNo
Number of lenses No dataNo data53
Flash NoNoNoNo
Dual-colour LED flash NoNoNoNo
Video resolution 1280x720 pxNo dataNo dataNo data
Video formats H.263, H.264, MPEG4H.264, H.265, MPEG4 - 30 fpsH.264, H.265, MPEG4 - 30 fpsH.263, H.264, MPEG4 - 30 fps
Additional FF, f/2.2FF, f/2.0FF, f/2.45FF, f/2.2
SENSORS

SENSORS

Accelerometer YesYesYesYes
Proximity YesYesYesYes
Light YesYesYesYes
Magnetometer YesYesYesYes
Gyroscope NoYesYesNo
Barometer NoNoNoNo
Altimeter NoNoNoNo
Gravity NoYesYesYes
Hall-effect NoNoNoNo
Iris scanner NoNoNoNo
Fingerprint scanner NoYesYesYes
Thermometer NoNoNoNo
Hygrometer NoNoNoNo
Data transfer

Data transfer

xHTML YesYesYesYes
WAP Yes
v2.0		Yes
v2.0		Yes
v2.0		Yes
v2.0
HSCSD NoNoNoNo
HSDPA Yes
42.20 Mbit/s		Yes
42.20 Mbit/s		Yes
42.20 Mbit/s		Yes
42.20 Mbit/s
HSUPA No
5.76 Mbit/s		Yes
5.76 Mbit/s		Yes
5.76 Mbit/s		Yes
5.76 Mbit/s
HSPA NoYesYesYes
HSPA+ NoYesYesYes
LTE DL -603.00 Mbit/sYes-
LTE UP -102.00 Mbit/sYes51.00 Mbit/s
WIMAX+ NoNoNoNo
GPRS YesYesYesYes
EDGE YesYesYesYes
Bluetooth Yes
v4.2		Yes
v5.0		Yes
v5.1		Yes
v5.0
A2DP Profile YesYesYesYes
HDMI NoNoNoNo
WiFi Yes
v802.11 b/g/n		Yes
v802.11 a/b/g/n/ac		Yes
v802.11 a/b/g/n/ac		Yes
v802.11 b/g/n
WiFi frequencies 2,4 GHz2,4 GHz; 5 GHz2,4 GHz; 5 GHz2,4 GHz
WiFi Direct YesYesYesYes
WiFi Display NoNoYesNo
DLNA NoNoNoNo
Miracast NoNoNoNo
WiFi hotspot YesYesYesYes
IrDA NoNoNoNo
USB Yes
v2.0		Yes
v2.0 Type-C		Yes
v2.0 Type-C		Yes
v2.0
GPS YesYesYesYes
A-GPS YesYesYesYes
GLONASS YesYesYesYes
Beidou YesYesYesYes
Galileo NoYesNoNo
QZSS NoNoNoNo
NFC NoYesYesNo
COMMUNICATION AND MESSAGING

COMMUNICATION AND MESSAGING

Call waiting YesYesYesYes
Conferency YesYesYesYes
Call forwarding YesYesYesYes
Push To Talk NoNoNoNo
Instant Messenger YesYesYesYes
SMS YesYesYesYes
EMS NoNoNoNo
MMS YesYesYesYes
Dictionary Yes
T9		Yes
T9		Yes
T9		Yes
T9
Swype NoNoNoNo
e-mail client Yes
POP3, IMAP4, SMTP		Yes
POP3, IMAP4, SMTP		Yes
POP3, IMAP4, SMTP		Yes
POP3, IMAP4, SMTP
Hardware QWERTY keyboard NoNoNoNo
RSS Reader YesYesYesYes
Multimedia

Multimedia

Radio No dataNoNoYes
MP3 YesYesYesYes
Stereo speakers NoNoNoNo
Audio Jack 3.5 mm3.5 mm3.5 mm3.5 mm
HD Voice YesYesYesYes
Sound formats AAC, AAC+, AMR, MID, WAV, eAAC+3GA, AAC, AAC+, AMR, AWB, FLAC, IMY, M4A, MID, MXMF, OGA, OGG, OTA, RTTTL, RTX, WAV, WMA, XMF, eAAC+AAC, AAC+, AMR, APE, FLAC, MID, MKA, WAV, eAC+AAC, AAC+, AMR, APE, FLAC, MID, MKA, OGG, WAV, WMA, eAAC+
Polyphony YesYesYesYes
Video ringtone NoNoNoNo
Ring composer NoNoNoNo
Games NoNoNoNo
Java Yes
ART		Yes
ART		Yes
ART		Yes
ART
Videophone NoYesNoNo
DVB-H television NoNoNoNo
TV-Out NoNoNoNo
PIM AND ADDITIONAL FUNCTIONS

PIM AND ADDITIONAL FUNCTIONS

Watch YesYesYesYes
Stopwatch YesYesYesYes
Alarm YesYesYesYes
Calculator YesYesYesYes
Currency converter NoNoNoNo
Organizer YesYesYesYes
Calendar YesYesYesYes
Flight mode YesYesYesYes
SyncML NoNoNoNo
Data and fax YesYesYesYes
Screensaver YesYesYesYes
Themes YesYesYesYes
Interchangeable covers NoNoNoNo
Voice dial YesYesYesYes
Speakerphone YesYesYesYes
Recorder YesYesYesYes
Vibrations YesYesYesYes
Oppo A1k
Total value: 5,09
Samsung Galaxy M21
Total value: 5,27
Realme 8
Total value: 5,90
Realme C21Y
Total value: 5,39
A D V E R T I S E M E N T