Home Phone comparison Samsung Galaxy M21 and Oppo Reno 16 - Which is better?

Samsung Galaxy M21 vs Oppo Reno 16

45 out 100
Samsung Galaxy M21
VS
82 out 100
Oppo Reno 16
Samsung Galaxy M21
Oppo Reno 16

Compared 2 smartphones : Samsung Galaxy M21 Manufactured in March, 2020, with display 6.4 with chipsetSamsung Exynos 7 Octa 9611, vs Oppo Reno 16, Manufactured in May, 2026 with chipsetMediaTek Dimensity 8500 Super. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy M21
  • Larger display: 6.4in
  • Supports Dolby Atmos
Reasons to choose Oppo Reno 16
  • Higher pixel density: 460ppi
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 6700mAh vs 6000mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Infrared port
  • Includes charger

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 6/128 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Samsung Galaxy M21 and Oppo Reno 16
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Samsung Galaxy M21
vs
Oppo Reno 16

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 6.4 in 6.32 in
Resolution 1080x2340 pixels 1216x2640 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 403 ppi 460 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes
Max brightness 630 nits 1800 nits
HDR support No Yes, HDR10+
Touch Sampling Rate n/a 240 Hz
Screen-to-body ratio 84.2 % 89.6 %
Features Always-On Display - DCI-P3
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy M21
608 nits
Oppo Reno 16
n/a
sRGB gamut141.3 %n/a
PWM (Flicker)215 Hzn/a
Response time9 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy M21]

Design & Build

Design and ergonomics comparison
Height 159 mm (6.26 in) 151.21 mm (5.95 in)
Width 75.1 mm (2.96 in) 72.42 mm (2.85 in)
Thickness 8.9 mm (0.35 in) 8.2 mm (0.32 in)
Weight 188 g (6.63 oz) 188 g (6.63 oz)
Water resistance No IP69
Cooling system n/a Vapor chamber
Back panel Plastic n/a
Frame Plastic Metal
Colors - Black
- Blue
- Green		 - White
- Black
- Purple
Fingerprint sensor Yes rear Yes, In-Display
Screen-to-body ratio
Samsung Galaxy M21
84.2 %
Oppo Reno 16
89.6 %

Performance

Testing Samsung Galaxy M21 and Oppo Reno 16 In benchmarks
Processor
Chipset Samsung Exynos 7 Octa 9611 MediaTek Dimensity 8500 Super
Max Frequency 2300 MHz 3400 MHz
CPU Cores 8 (4 + 4) 8 (1 + 3 + 4)
Architecture - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)		 - 4/2.2 (Cortex-A725)
- 3/3.2 (Cortex-A725)
- 1/3.4 (Cortex-A725)
Process Samsung TSMC
Transistor Size 10 nm 4 nm
Neural Processor Yes MediaTek NPU 880
Graphics Mali-G72 MP3 n/a
GPU Cores 54 n/a
GPU Frequency 850 MHz n/a
FLOPS 113.8 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy M21
514
Oppo Reno 16
1611
Geekbench 6 (Multi-Core)
Samsung Galaxy M21
1558
Oppo Reno 16
6402
Geekbench 6 (Single-Core)5141611
Geekbench 6 (Multi-Core)15586402
Sources: Geekbench v6 [Oppo Reno 16]
AnTuTu 10
AnTuTu 10
Samsung Galaxy M21
266455
Oppo Reno 16
2078850
CPU76468646700
GPU45756646793
Memory70269276204
UX73962509153
NanoReview Score2664552078850
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy M21
816
Oppo Reno 16
n/a
Max Surface Temp.44.1 °Cn/a
Stability73 %n/a
Graphics Test4 fpsn/a
Graphics Score816n/a
Sources: 3DMark [Samsung Galaxy M21]

Memory

RAM
RAM Size - 4 GB
- 6 GB		 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1866 MHz n/a
Channels 2 4
Storage
Storage Capacity- 64 GB
- 128 GB		256 GB
Storage TypeUFS 2.1UFS 3.1
Memory CardMicroSDNo

Software

OS Android 10.0 (Upgradeable to Android 12.0) Android 16
OS Size 14.5 GB n/a
UI Skin One Ui 4.1 ColorOS 16

Battery

Volume 6000 mAh 6700 mAh
Max Charging Power 15 W 80 W
Battery Type Li-ion Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging Yes Samsung Adaptive Fast Charge (25% in 30 min) Yes
Full Charge Time 2:35 h n/a
Battery Life Test
Battery Life
Samsung Galaxy M21
24:03
Oppo Reno 16
n/a
Web Browsing10:07 hn/a
Video Playback13:59 hn/a
Games05:35 hn/a
Standby Mode115 hn/a

Main camera

Matrix 48 MP 200 MP
Photo resolution 8000x6000 pixels 16320x12240 pixels
Zoom Digital Optical, 3.5x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (720p) 240 fps (720p)
Wide-angle lens 123 ° 116 °
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Depth: 5 MP		 Standard: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix48 MP200 MP
Aperturef/2.0f/1.8
Focal length26 mm24 mm
SensorSamsung S5KGM2n/a
Sensor size1/2.0n/a
Pixel size0.8 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.8
Focal lengthn/a80 mm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.0
Focal length12 mm16 mm
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitalDigital

Front camera

Matrix 20 MP 50 MP
Photo resolution 5184x3888 pixels 8192x6144 pixels
Aperture f/2.0 f/2.0
Focal length 26 mm 18 mm
Sensor CMOS n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.4
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM850, GSM900, DCS1800, PCS1900GSM 850/900/1800MHz
3G BandsB1 (2100), B2 (1900), B5(850), B8 (900)WCDMA 1/4/5/8/19
LTE Bands*LTE (B1/B3/B5/B7/B8/B20/B38/B40/B41)LTE (B1/B3/B4/B5/B8/B18/B19/B26/B28/B34/B38/B39/B40/B41/B42/B43/B48/B66)
LTE category12n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes No
Speaker Test
Max Volume
Samsung Galaxy M21
83.8 dB
Oppo Reno 16
n/a

Other

Class Mid-range Mid-range
Announced March, 2020 yr May, 2026 yr
Release Date March, 2020 yr May, 2026 yr
Launch Price ($) 210 n/a
MSRP ($) n/a 515
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a Yes, 80 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Oppo Reno 16 the clear winner in this comparison.

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