Home Phone comparison Samsung Galaxy M31 and Vivo iQOO 15R - Which is better?

Samsung Galaxy M31 vs Vivo iQOO 15R

46 out 100
Samsung Galaxy M31
VS
88 out 100
Vivo iQOO 15R
Samsung Galaxy M31
Vivo iQOO 15R

Compared 2 smartphones : Samsung Galaxy M31 Manufactured in March, 2020, with display 6.4 with chipsetSamsung Exynos 7 Octa 9611, vs Vivo iQOO 15R, Manufactured in March, 2026 with chipsetQualcomm Snapdragon 8 Gen 5. 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 M31
  • Lighter design: 191g vs 202g
  • Supports Dolby Atmos
Reasons to choose Vivo iQOO 15R
  • Larger display: 6.59in
  • Higher pixel density: 459ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7600mAh vs 6000mAh
  • Newer Bluetooth version: 6.0 vs 5
  • Supports DisplayPort
  • Infrared port
  • Includes charger

Versions

Available versions and configurations
Memory Options - 6/64 GB
- 6/128 GB
- 8/128 GB		 - 8/256 GB
- 12/256 GB
- 12/512 GB

Review

Key Specs Samsung Galaxy M31 and Vivo iQOO 15R
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 M31
vs
Vivo iQOO 15R

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 6.4 in 6.59 in
Resolution 1080x2340 pixels 1260x2750 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 403 ppi 459 ppi
Refresh rate 60 Hz 144 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 600 nits n/a
HDR support Yes HDR10 Yes, HDR10+
Screen-to-body ratio 84.1 % 90.8 %
Features Always-On Display - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy M31
614 nits
Vivo iQOO 15R
n/a
sRGB gamut142 %n/a
PWM (Flicker)208 Hzn/a
Response time8.5 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy M31]

Design & Build

Design and ergonomics comparison
Height 159.2 mm (6.27 in) 157.61 mm (6.21 in)
Width 75.1 mm (2.96 in) 74.42 mm (2.93 in)
Thickness 8.9 mm (0.35 in) 7.9 mm (0.31 in)
Weight 191 g (6.74 oz) 202 g (7.13 oz)
Water resistance No IP69
Cooling system n/a Vapor chamber
Back panel Plastic Plastic
Frame Plastic Metal
Colors - Black
- Blue
- Red		 - Black
- Silver
Fingerprint sensor Yes rear Yes, In-Display
Screen-to-body ratio
Samsung Galaxy M31
84.1 %
Vivo iQOO 15R
90.8 %

Performance

Testing Samsung Galaxy M31 and Vivo iQOO 15R In benchmarks
Processor
Chipset Samsung Exynos 7 Octa 9611 Qualcomm Snapdragon 8 Gen 5
Max Frequency 2300 MHz 3000 MHz
CPU Cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)		 6/3.32 ()
Process Samsung TSMC
Transistor Size 10 nm 3 nm
Neural Processor Yes Hexagon
Graphics Mali-G72 MP3 Adreno 829
GPU Cores 54 1024
GPU Frequency 850 MHz 1200 MHz
FLOPS 113.8 GFLOPS 2457.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy M31
505
Vivo iQOO 15R
2698
Geekbench 6 (Multi-Core)
Samsung Galaxy M31
1547
Vivo iQOO 15R
8830
Geekbench 6 (Single-Core)5052698
Geekbench 6 (Multi-Core)15478830
Geekbench Compute (GPU)n/a21113
Sources: Geekbench v6 [Vivo iQOO 15R]
AnTuTu 10
AnTuTu 10
Samsung Galaxy M31
257150
Vivo iQOO 15R
3272562
CPU736401018344
GPU45350997845
Memory62516433367
UX75644823006
NanoReview Score2571503272562
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy M31
820
Vivo iQOO 15R
n/a
Max Surface Temp.45.2 °Cn/a
Stability74 %n/a
Graphics Test4 fpsn/a
Graphics Score820n/a
Sources: 3DMark [Samsung Galaxy M31]

Memory

RAM
RAM Size 6 GB 8 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1866 MHz n/a
Channels 2 4
Storage
Storage Capacity128 GB256 GB
Storage TypeUFS 2.1UFS 4.1
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 16
OS Size 15 GB n/a
UI Skin One UI 4.1 OriginOS 6

Battery

Volume 6000 mAh 7600 mAh
Max Charging Power 15 W 100 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 (45% in 60 min) Yes (46% in 30 min)
Full Charge Time 2:25 h 1:04 h
Battery Life Test
Battery Life
Samsung Galaxy M31
24:27
Vivo iQOO 15R
n/a
Web Browsing10:13 hn/a
Video Playback14:16 hn/a
Games05:44 hn/a
Standby Mode117 hn/a

Main camera

Matrix 64 MP 50 MP
Photo resolution 9248x6920 pixels 8192x6144 pixels
Zoom Digital Digital
Flash LED 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) n/a
Wide-angle lens 123 ° n/a
Lenses count Standard: 64 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix64 MP50 MP
Aperturef/1.8f/1.8
Focal length26 mmn/a
SensorISOCELL Bright GW1n/a
Sensor size1/1.72n/a
Pixel size0.8 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrix8 MP8 MP
Aperturef/2.2f/2.2
Focal length12 mm15 mm
Sensor size1/4.01/4.0 (0.25)
Pixel size1.12 μmn/a
StabilizationDigitalDigital

Front camera

Matrix 32 MP 32 MP
Photo resolution 6528x4896 pixels n/a
Aperture f/2.0 f/2.2
Focal length 26 mm n/a
Sensor Sony IMX616 n/a
Sensor size 1/2.8 n/a
Pixel size 0.8 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 6.0
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 Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Varies by region Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850/900/1800MHz
3G BandsHSDPA 850 / 900 / 1900 / 2100WCDMA B1/B5/B6/B8/B19
LTE Bands*LTE (B1/B3/B5/B8/B20/B40/B41)LTE (B1/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B32/B71)
LTE category12n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Samsung Galaxy M31
81.7 dB
Vivo iQOO 15R
n/a

Other

Class Mid-range Mid-range
Announced February, 2020 yr February, 2026 yr
Release Date March, 2020 yr March, 2026 yr
Launch Price ($) 220 n/a
MSRP ($) n/a 495
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, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo iQOO 15R the clear winner in this comparison.

Survey

Which smartphone would you pick?
0 (0%)
0 (0%)
Total Votes: 0

User comments

Share your opinion or ask questions below