Samsung Galaxy Z Flip 6 vs Samsung Galaxy S21 Plus

79 out 100

VS

67 out 100

Compared 2 smartphones : Samsung Galaxy Z Flip 6 Manufactured in July, 2024, with display 6.7 with chipsetQualcomm Snapdragon 8 Gen 3, vs Samsung Galaxy S21 Plus, Manufactured in February, 2021with chipsetSamsung Exynos 2100. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages

Reasons to choose Samsung Galaxy Z Flip 6

Higher pixel density: 426ppi
Lighter design: 187g vs 200g
Newer Bluetooth version: 5.3 vs 5
Supports DisplayPort

Reasons to choose Samsung Galaxy S21 Plus

Higher battery capacity: 4800mAh vs 4000mAh

Versions

Available versions and configurations

Memory Options

- 12/128 GB
- 12/256 GB
- 12/512 GB

- 8/128 GB
- 8/256 GB

Review

Key Specs Samsung Galaxy Z Flip 6 and Samsung Galaxy S21 Plus

Display

Color accuracy, sharpness & brightness

Samsung Galaxy Z Flip 6

90

Samsung Galaxy S21 Plus

74

Camera

Main & front camera tests

Samsung Galaxy Z Flip 6

76

Samsung Galaxy S21 Plus

75

Performance

App & system performance

Samsung Galaxy Z Flip 6

82

Samsung Galaxy S21 Plus

55

Games

3D gaming performance

Samsung Galaxy Z Flip 6

91

Samsung Galaxy S21 Plus

44

Battery

Battery life, charging speed & type

Samsung Galaxy Z Flip 6

59

Samsung Galaxy S21 Plus

67

Connectivity

Connectivity features

Samsung Galaxy Z Flip 6

85

Samsung Galaxy S21 Plus

86

NanoReview Score

Overall score by NanoReview

Samsung Galaxy Z Flip 6

79

Samsung Galaxy S21 Plus

67

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Function

Importance (Weight)

Display:

Camera:

Performance:

Gaming:

Battery:

Connectivity:

Higher weight means greater impact on NanoReview score.

Display

Display quality comparison

Type	Dynamic AMOLED	Dynamic AMOLED
Size	6.7 in	6.7 in
Resolution	1080x2640 pixels	1080x2400 pixels
Aspect ratio	22:9	20:9
Pixel density	426 ppi	394 ppi
Refresh rate	120 Hz	120 Hz
Adaptive refresh rate	Yes (1-120 Hz)	Yes (48-120 Hz)
Max brightness	1600 nits	1300 nits
HDR support	Yes HDR10+	Yes HDR10+
Screen-to-body ratio	85.4 %	88.7 %
Features	- DCI-P3 - Always-On Display	- DCI-P3 - Always-On Display

Peak brightness (auto)

Samsung Galaxy Z Flip 6

1371 nits

Samsung Galaxy S21 Plus

879 nits

sRGB gamut	97.6 %	98.9 %
PWM (Flicker)	120 Hz	240 Hz
Response time	2 ms	6.2 ms
Contrast	∞ Infinite	∞ Infinite

Sources: NotebookCheck [Samsung Galaxy Z Flip 6], [Samsung Galaxy S21 Plus]

Design & Build

Design and ergonomics comparison

Height	165.1 mm (6.5 in)	161.5 mm (6.36 in)
Width	71.9 mm (2.83 in)	75.6 mm (2.98 in)
Thickness	6.9 mm (0.27 in)	7.8 mm (0.31 in)
Weight	187 g (6.6 oz)	200 g (7.05 oz)
Water resistance	IP48	IP68
Cooling system	Vapor chamber	n/a
Back panel	Glass	Glass
Frame	Metal	Metal
Colors	- White - Black - Silver - Blue - Yellow	- Black - Silver - Gold - Red - Purple
Fingerprint sensor	Yes In-Button	Yes In-Display

Screen-to-body ratio

Samsung Galaxy Z Flip 6

85.4 %

Samsung Galaxy S21 Plus

88.7 %

Performance

Testing Samsung Galaxy Z Flip 6 and Samsung Galaxy S21 Plus In benchmarks

Chipset	Qualcomm Snapdragon 8 Gen 3	Samsung Exynos 2100
Max Frequency	3390 MHz	2840 MHz
CPU Cores	8 (1 + 3 + 2 + 2)	8 (1 + 3 + 4)
Architecture	- 2/2.27 (Cortex-A520) - 2/2.96 (Cortex-A720) - 3/3.15 (Cortex-A720) - 1/3.3 (Cortex-X4)	- 4/2.2 (Cortex-A55) - 3/2.81 (Cortex-A78) - 1/2.91 (Cortex-X1)
Process	TSMC	Samsung
Transistor Size	4 nm	5 nm
Neural Processor	Hexagon	Yes
Graphics	Adreno 750	Mali-G78 MP14
GPU Cores	1536	896
GPU Frequency	1000 MHz	854 MHz
FLOPS	2774 GFLOPS	1530.4 GFLOPS

Geekbench 6 (Single-Core)

Samsung Galaxy Z Flip 6

2247

Samsung Galaxy S21 Plus

1428

Geekbench 6 (Multi-Core)

Samsung Galaxy Z Flip 6

6857

Samsung Galaxy S21 Plus

3840

Geekbench 6 (Single-Core)	2247	1428
Geekbench 6 (Multi-Core)	6857	3840
Geekbench Compute (GPU)	13050	n/a

Sources: Geekbench v6 [Samsung Galaxy Z Flip 6]

AnTuTu 10

Samsung Galaxy Z Flip 6

1852243

Samsung Galaxy S21 Plus

919348

CPU	439300	262973
GPU	794881	294382
Memory	319119	147307
UX	298943	214686
NanoReview Score	1852243	919348

3DMark Wild Life

Samsung Galaxy Z Flip 6

16078

Samsung Galaxy S21 Plus

5538

Max Surface Temp.	n/a	41.5 °C
Stability	n/a	67 %
Graphics Test	n/a	33 fps
Graphics Score	n/a	5538

Sources: 3DMark [Samsung Galaxy Z Flip 6], [Samsung Galaxy S21 Plus]

PCMark 3.0

Samsung Galaxy Z Flip 6

17364

Samsung Galaxy S21 Plus

n/a

Writing score	22783	n/a
Web score	17007	n/a
Video editing	8108	n/a
Data manipulation	15280	n/a
NanoReview Score	17364	n/a

Memory

RAM Size	12 GB	8 GB
Memory Type	LPDDR5	LPDDR5
Memory Frequency	3200 MHz	2750 MHz
Channels	4	2

Storage Capacity	- 256 GB - 512 GB	- 128 GB - 256 GB
Storage Type	UFS 4.0	UFS 3.1
Memory Card	No	No

Software

OS	Android 14	Android 11 (Upgradeable to Android 14)
OS Size	25.6 GB	27.2 GB
UI Skin	One UI 6.1.1	One UI 6

Battery

Volume	4000 mAh	4800 mAh
Max Charging Power	25 W	25 W
Battery Type	Li-Po	Li-ion
Removable	No	No
Wireless Charging	Yes (15 W)	Yes (15 W)
Reverse Charging	Yes (Wireless)	Yes (Wireless)
Fast Charging	Yes (44% in 30 min)	Yes (54% in 30 min)
Full Charge Time	1:41 h	1:12 h

Battery Life

Samsung Galaxy Z Flip 6

18:21

Samsung Galaxy S21 Plus

20:53

Web Browsing	05:56 h	07:28 h
Video Playback	13:24 h	13:15 h
Games	04:18 h	05:04 h
Standby Mode	89 h	105 h

Main camera

Matrix	50 MP	12 MP
Photo resolution	8160x6120 pixels	4000x3000 pixels
Zoom	Digital	Optical, 1.1x
Flash	LED	Dual LED
Stabilization	Optical	Optical
8K Recording	No	Up to 24FPS
4K Recording	Yes (Up to 60 fps)	Yes (Up to 60 fps)
1080p Recording	Yes (Up to 60 fps)	Yes (Up to 60 fps)
Slow Motion	240 fps (1080p)	960 fps (720p)
Wide-angle lens	123 °	120 °
Lenses count	Standard: 50 MP Ultra-wide: 12 MP	Standard: 12 MP Telephoto: 64 MP Ultra-wide: 12 MP
Features	- Bokeh effect - Pro mode	- Bokeh effect - Pro mode - RAW support

Matrix	50 MP	12 MP
Aperture	f/1.8	f/1.8
Focal length	23 mm	26 mm
Sensor	Samsung ISOCELL GN3	Sony IMX555
Sensor size	1/1.57	1/1.76
Pixel size	1 μm	1.8 μm
Autofocus	Phase autofocus (Dual Pixel)	Phase autofocus (Dual Pixel)
Stabilization	Optical	Optical

Matrix	n/a	64 MP
Aperture	n/a	f/2.0
Focal length	n/a	28 mm
Sensor	n/a	Samsung Bright S5KGW2
Sensor size	n/a	1/1.72
Pixel size	n/a	0.8 μm
Stabilization	n/a	Optical

Matrix	12 MP	12 MP
Aperture	f/2.2	f/2.2
Focal length	13 mm	13 mm
Sensor	Samsung ISOCELL 3LU	Sony IMX563
Sensor size	1/3.2	1/2.55
Pixel size	1.12 μm	1.4 μm
Stabilization	Digital	Digital

Photo quality

Samsung Galaxy Z Flip 6

132

Samsung Galaxy S21 Plus

129

Video quality

Samsung Galaxy Z Flip 6

128

Samsung Galaxy S21 Plus

137

Overall camera score

Samsung Galaxy Z Flip 6

132

Samsung Galaxy S21 Plus

133

Bokeh	70	70
Preview	76	72
Zoom	124	126

Sources: DxOMark [Samsung Galaxy Z Flip 6], [Samsung Galaxy S21 Plus]

Front camera

Matrix	10 MP	10 MP
Photo resolution	3648x2736 pixels	3872x2592 pixels
Aperture	f/2.2	f/2.2
Focal length	23 mm	26 mm
Sensor	Samsung ISOCELL 3J1	Sony IMX374
Sensor size	1/3.0	1/3.24
Pixel size	1.22 μm	1.22 μm
Autofocus	No	Phase autofocus (Dual Pixel)
Stabilization	Digital	Digital
Video resolution	2160p (4K) at 60 fps	2160p (4K) at 60 fps
TOF 3D sensor	No	No

Connectivity

Wi-Fi version	Wi-Fi 6E (802.11 a/b/g/n/ac/ax)	Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features	- Dual Band - Wi-Fi MiMO - 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	5.3	5
Bluetooth features	LE	LE, A2DP
USB type	USB Type-C	USB Type-C
USB version	3.2	3.2
USB features	- Charging - USB Storage Mode - OTG	- Charging - USB Storage Mode - USB-Host mode - OTG
DisplayPort	Yes DP 1.2	n/a
GPS	- GPS - GLONASS - Beidou - Galileo - QZSS	- GPS - GLONASS - Beidou - Galileo
NFC*	Yes	Yes
Infrared Port	No	No

SIM Count*	1	2
SIM Type	Nano	Nano
SIM Mode	n/a	Dual SIM Standby
eSIM Support *	Yes	Yes
Hybrid Slot	No	No
2G Bands	GSM850,GSM900,DCS1800,PCS1900	GSM 850, 900, 1800, 1900 MHz
3G Bands	UMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)	WCDMA Band 1, 2, 4, 5, 8
LTE Bands*	LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B38/B39/B40/B41/B48/B66/B71)	LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B38/B39/B40/B41/B66)
LTE category	n/a	24
5G Support	Yes	Yes

Sound

Speakers	Stereo	Stereo
3.5 mm Jack	No	No
FM Radio	No	No
Dolby Atmos	Yes	Yes

Max Volume

Samsung Galaxy Z Flip 6

90.8 dB

Samsung Galaxy S21 Plus

87.8 dB

Other

Class	Flagship	Flagship
Announced	July, 2024 yr	January, 2021 yr
Release Date	July, 2024 yr	February, 2021 yr
Launch Price ($)	1099	1000
Sensors	- Hall Sensor - Barometer - 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	No	n/a

Results

After analyzing the data, we consider Samsung Galaxy Z Flip 6 the clear winner in this comparison.

Survey

Which smartphone would you pick?

Samsung Galaxy Z Flip 6

0 (0%)

Samsung Galaxy S21 Plus

0 (0%)

Total Votes: 0

Samsung Galaxy Z Flip 6 vs Samsung Galaxy S21 Plus

Key Differences

Versions

Review

Tests & specs

Display

Design & Build

Performance

Memory

Software

Battery

Main camera

Front camera

Connectivity

Sound

Other

Results

Survey

User comments