Home Phone comparison Samsung Galaxy A21s and Vivo iQOO 15R - Which is better?

Samsung Galaxy A21s vs Vivo iQOO 15R

39 out 100
Samsung Galaxy A21s
VS
88 out 100
Vivo iQOO 15R
Samsung Galaxy A21s
Vivo iQOO 15R

Compared 2 smartphones : Samsung Galaxy A21s Manufactured in June, 2020, with display 6.5 with chipsetSamsung Exynos 850, 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 A21s
  • Lighter design: 192g 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 5000mAh
  • Newer Bluetooth version: 6.0 vs 5
  • Supports DisplayPort
  • Infrared port
  • Includes charger

Versions

Available versions and configurations
Memory Options - 2/32 GB
- 3/32 GB
- 3/64 GB
- 3/128 GB
- 4/32 GB
- 4/64 GB
- 4/128 GB
- 6/64 GB
- 6/128 GB		 - 8/256 GB
- 12/256 GB
- 12/512 GB

Review

Key Specs Samsung Galaxy A21s 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 A21s
vs
Vivo iQOO 15R

Display

Display quality comparison
Type PLS TFT AMOLED
Size 6.5 in 6.59 in
Resolution 720x1600 pixels 1260x2750 pixels
Aspect ratio 20:9 19.5:9
Pixel density 270 ppi 459 ppi
Refresh rate 60 Hz 144 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 540 nits n/a
HDR support No Yes, HDR10+
Screen-to-body ratio 82.9 % 90.8 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy A21s
487 nits
Vivo iQOO 15R
n/a
sRGB gamut88.4 %n/a
PWM (Flicker)500 Hzn/a
Response time30.4 msn/a
Contrast1500:1n/a
Sources: NotebookCheck [Samsung Galaxy A21s]

Design & Build

Design and ergonomics comparison
Height 163.6 mm (6.44 in) 157.61 mm (6.21 in)
Width 75.3 mm (2.96 in) 74.42 mm (2.93 in)
Thickness 8.9 mm (0.35 in) 7.9 mm (0.31 in)
Weight 192 g (6.77 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 A21s
82.9 %
Vivo iQOO 15R
90.8 %

Performance

Testing Samsung Galaxy A21s and Vivo iQOO 15R In benchmarks
Processor
Chipset Samsung Exynos 850 Qualcomm Snapdragon 8 Gen 5
Max Frequency 2000 MHz 3000 MHz
CPU Cores 8 (8) 8 (2 + 6)
Architecture 8/2 (Cortex-A55) 6/3.32 ()
Process Samsung TSMC
Transistor Size 8 nm 3 nm
Neural Processor No Hexagon
Graphics Mali-G52 MP1 Adreno 829
GPU Cores 24 1024
GPU Frequency 850 MHz 1200 MHz
FLOPS 40.8 GFLOPS 2457.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A21s
484
Vivo iQOO 15R
2698
Geekbench 6 (Multi-Core)
Samsung Galaxy A21s
1523
Vivo iQOO 15R
8830
Geekbench 6 (Single-Core)4842698
Geekbench 6 (Multi-Core)15238830
Geekbench Compute (GPU)n/a21113
Sources: Geekbench v6 [Vivo iQOO 15R]
AnTuTu 10
AnTuTu 10
Samsung Galaxy A21s
191375
Vivo iQOO 15R
3272562
CPU687481018344
GPU26807997845
Memory59210433367
UX36610823006
NanoReview Score1913753272562
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A21s
425
Vivo iQOO 15R
n/a
Max Surface Temp.43.2 °Cn/a
Stability98 %n/a
Graphics Test2 fpsn/a
Graphics Score425n/a
Sources: 3DMark [Samsung Galaxy A21s]
PCMark 3.0
PCMark 3.0
Samsung Galaxy A21s
5429
Vivo iQOO 15R
n/a
Writing score5426n/a
Web score4708n/a
Video editing5145n/a
Data manipulation3808n/a
NanoReview Score5429n/a

Memory

RAM
RAM Size - 3 GB
- 4 GB		 8 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1866 MHz n/a
Channels 2 4
Storage
Storage Capacity- 32 GB
- 64 GB		256 GB
Storage TypeeMMC 5.1UFS 4.1
Memory CardMicroSDNo

Software

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

Battery

Volume 5000 mAh 7600 mAh
Max Charging Power 15 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging Yes (50% in 60 min) Yes (46% in 30 min)
Full Charge Time 2:10 h 1:04 h
Battery Life Test
Battery Life
Samsung Galaxy A21s
25:00
Vivo iQOO 15R
n/a
Web Browsing09:45 hn/a
Video Playback14:13 hn/a
Games05:34 hn/a
Standby Mode128 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8192x6144 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Optical
8K Recording No No
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion No n/a
Wide-angle lens 123 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 2 MP
Depth: 2 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features Bokeh effect - Bokeh effect
- Pro mode
Main lens
Matrix48 MP50 MP
Aperturef/2.0f/1.8
Focal length26 mmn/a
SensorSamsung S5KGM2n/a
Sensor size1/2.0n/a
Pixel size0.8 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrix8 MP8 MP
Aperturef/2.2f/2.2
Focal lengthn/a15 mm
Sensor size1/4.01/4.0 (0.25)
Pixel size1.12 μmn/a
StabilizationDigitalDigital

Front camera

Matrix 13 MP 32 MP
Photo resolution 4128x3096 pixels n/a
Aperture f/2.2 f/2.2
Sensor CMOS n/a
Sensor size 1/3.1 n/a
Pixel size 1.12 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) 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* 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 B1/B5/B6/B8/B19
LTE Bands*LTE (B1/B2/B3/B5/B7/B8/B20/B28)LTE (B1/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B32/B71)
LTE category13n/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 A21s
79.5 dB
Vivo iQOO 15R
n/a

Other

Class Budget Mid-range
Announced May, 2020 yr February, 2026 yr
Release Date June, 2020 yr March, 2026 yr
Launch Price ($) 200 n/a
MSRP ($) n/a 495
Sensors - Hall Sensor
- 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

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1 (100%)
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Total Votes: 1

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