Home Phone comparison Samsung Galaxy M31 and Samsung Galaxy Z Flip 7 - Which is better?

Samsung Galaxy M31 vs Samsung Galaxy Z Flip 7

46 out 100
Samsung Galaxy M31
VS
80 out 100
Samsung Galaxy Z Flip 7
Samsung Galaxy M31
Samsung Galaxy Z Flip 7

Compared 2 smartphones : Samsung Galaxy M31 Manufactured in March, 2020, with display 6.4 with chipsetSamsung Exynos 7 Octa 9611, vs Samsung Galaxy Z Flip 7, Manufactured in July, 2025 with chipsetSamsung Exynos 2500. 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
  • Higher pixel density: 403ppi
  • Higher battery capacity: 6000mAh vs 4300mAh
Reasons to choose Samsung Galaxy Z Flip 7
  • Larger display: 6.9in
  • Higher refresh rate: 120Hz
  • Lighter design: 188g vs 191g
  • Newer Bluetooth version: 5.4 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM

Versions

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

Review

Key Specs Samsung Galaxy M31 and Samsung Galaxy Z Flip 7
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.
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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
Samsung Galaxy Z Flip 7

Display

Display quality comparison
Type Super AMOLED Dynamic AMOLED
Size 6.4 in 6.9 in
Resolution 1080x2340 pixels 1080x2520 pixels
Aspect ratio 19.5:9 21:9
Pixel density 403 ppi 397 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (1-120 Hz)
Max brightness 600 nits 1600 nits
HDR support Yes HDR10 Yes, HDR10+
Screen-to-body ratio 84.1 % 88.7 %
Features Always-On Display - DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Samsung Galaxy M31
614 nits
Samsung Galaxy Z Flip 7
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) 166.7 mm (6.56 in)
Width 75.1 mm (2.96 in) 75.2 mm (2.96 in)
Thickness 8.9 mm (0.35 in) 6.5 mm (0.26 in)
Weight 191 g (6.74 oz) 188 g (6.63 oz)
Water resistance No IP48
Cooling system n/a Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - Black
- Blue
- Red		 - Black
- Blue
- Green
- Red
Fingerprint sensor Yes rear Yes, In-Button
Screen-to-body ratio
Samsung Galaxy M31
84.1 %
Samsung Galaxy Z Flip 7
88.7 %

Performance

Testing Samsung Galaxy M31 and Samsung Galaxy Z Flip 7 In benchmarks
Processor
Chipset Samsung Exynos 7 Octa 9611 Samsung Exynos 2500
Max Frequency 2300 MHz 3300 MHz
CPU Cores 8 (4 + 4) 10 (1 + 2 + 5 + 2)
Architecture - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)		 - 2/1.8 (Cortex-A520)
- 5/2.36 (Cortex-A725)
- 2/2.74 (Cortex-A725)
- 1/3.3 (Cortex-X925)
Process Samsung Samsung
Transistor Size 10 nm 3 nm
Neural Processor Yes Yes
Graphics Mali-G72 MP3 Samsung Xclipse 950
GPU Cores 54 1024
GPU Frequency 850 MHz 999 MHz
FLOPS 113.8 GFLOPS 4091.9 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy M31
505
Samsung Galaxy Z Flip 7
2511
Geekbench 6 (Multi-Core)
Samsung Galaxy M31
1547
Samsung Galaxy Z Flip 7
8702
Geekbench 6 (Single-Core)5052511
Geekbench 6 (Multi-Core)15478702
AnTuTu 10
AnTuTu 10
Samsung Galaxy M31
257150
Samsung Galaxy Z Flip 7
2213797
CPU73640500921
GPU45350928912
Memory62516410202
UX75644373762
NanoReview Score2571502213797
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy M31
820
Samsung Galaxy Z Flip 7
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 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1866 MHz n/a
Channels 2 4
Storage
Storage Capacity128 GB256 GB
Storage TypeUFS 2.1UFS 4.0
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 16
OS Size 15 GB 27 GB
UI Skin One UI 4.1 One UI 8.0

Battery

Volume 6000 mAh 4300 mAh
Max Charging Power 15 W 25 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging No Yes (15 W)
Reverse Charging No Yes, (Wireless)
Fast Charging Yes Samsung Adaptive Fast Charge (45% in 60 min) Yes
Full Charge Time 2:25 h n/a
Battery Life Test
Battery Life
Samsung Galaxy M31
24:27
Samsung Galaxy Z Flip 7
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 8160x6120 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) 240 fps (1080p)
Wide-angle lens 123 ° 123 °
Lenses count Standard: 64 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 50 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix64 MP50 MP
Aperturef/1.8f/1.8
Focal length26 mm23 mm
SensorISOCELL Bright GW1Samsung ISOCELL GN3
Sensor size1/1.721/1.57
Pixel size0.8 μm1 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalOptical
Ultra-wide lens
Matrix8 MP12 MP
Aperturef/2.2f/2.2
Focal length12 mm13 mm
Sensorn/aSamsung ISOCELL 3LU
Sensor size1/4.01/3.2
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 10 MP
Photo resolution 6528x4896 pixels 3648x2736 pixels
Aperture f/2.0 f/2.2
Focal length 26 mm 23 mm
Sensor Sony IMX616 Samsung ISOCELL 3J1
Sensor size 1/2.8 1/3.0
Pixel size 0.8 μm 1.22 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) 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 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 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 3.2
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 No
Connectivity
SIM Count*21
SIM TypeNanoNano
SIM ModeDual SIM Standbyn/a
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM (850/900/1800/1900)
3G BandsHSDPA 850 / 900 / 1900 / 2100WCDMA (850/900/1900/2100)
LTE Bands*LTE (B1/B3/B5/B8/B20/B40/B41)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B29/B30/B66/B71)
LTE category12n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy M31
81.7 dB
Samsung Galaxy Z Flip 7
n/a

Other

Class Mid-range Flagship
Announced February, 2020 yr July, 2025 yr
Release Date March, 2020 yr July, 2025 yr
Launch Price ($) 220 n/a
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy Z Flip 7 the clear winner in this comparison.

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