Samsung Galaxy M21 vs Samsung Galaxy Z Flip8

Samsung Galaxy M21

Exynos 9611

Samsung Galaxy Z Fold Wide Samsung Galaxy S26 Ultra Samsung Galaxy Z Fold8 Ultra Samsung Galaxy S26+ Samsung Galaxy Z Fold7 Samsung Galaxy S25 Edge Samsung Galaxy Z TriFold Samsung Galaxy S26

Samsung Galaxy Z Flip8

Exynos 2600

Samsung Galaxy Z Fold Wide Samsung Galaxy S26 Ultra Samsung Galaxy Z Fold8 Ultra Samsung Galaxy S26+ Samsung Galaxy Z Fold7 Samsung Galaxy S25 Edge Samsung Galaxy Z TriFold Samsung Galaxy S26

The Samsung Galaxy M21 (2020) runs on the Exynos 9611, while the Samsung Galaxy Z Flip8 (2026) runs on the Exynos 2600. By overall MobileRank rating, the Samsung Galaxy Z Flip8 leads — 66/100 vs 42/100 (a 24-point difference). Key differences: the Samsung Galaxy M21 has the bigger battery (6000 mAh vs 4300); the main camera is 48 MP vs 50 MP; the Samsung Galaxy Z Flip8 is faster in AnTuTu (3,113,347 vs 355,351); the Samsung Galaxy Z Flip8 has NFC for contactless payments, the Samsung Galaxy M21 doesn't.

The Samsung Galaxy Z Flip8 significantly outperforms the Samsung Galaxy M21 by 24 points (66/100 vs 42/100).

Profile comparison

Category scores

Samsung Galaxy M21

Performance 25

Display 83

Camera 36

Battery 51

Portability 57

Value for money —

Samsung Galaxy Z Flip8

Performance 93

Display 80

Camera 35

Battery 37

Portability 80

Value for money 42

What makes Samsung Galaxy M21 better?

Bigger battery: 6000 vs 4300 mAh

Better camera (36/100 vs 35/100)
Longer battery life (51/100 vs 37/100)
Better display (83/100 vs 80/100)

What makes Samsung Galaxy Z Flip8 better?

Higher AnTuTu: 3113347 vs 355351
Better Geekbench Single: 3235 vs 365
Better Geekbench Multi: 10904 vs 1107
Faster charging: 25W vs 15W
Better main camera: 50MP vs 48MP
Lighter: 180g vs 188g

Higher performance (93/100 vs 25/100)
Better portability (80/100 vs 57/100)

Comparison verdict

Comparing the Samsung Galaxy M21 vs the Samsung Galaxy Z Flip8, the Samsung Galaxy Z Flip8 scores 24 points higher (66/100 vs 42/100). In the "performance" category, the Samsung Galaxy Z Flip8 leads (93/100 vs 25/100). In the "battery" category, the Samsung Galaxy M21 leads (51/100 vs 37/100). In the "performance" category, the Samsung Galaxy Z Flip8 significantly outperforms the Samsung Galaxy M21 (93/100 vs 25/100). In the "display" category, the Samsung Galaxy M21 and the Samsung Galaxy Z Flip8 are nearly equal (83/100 vs 80/100). In the "camera" category, the Samsung Galaxy M21 and the Samsung Galaxy Z Flip8 are nearly equal (36/100 vs 35/100). In the "battery" category, the Samsung Galaxy M21 is a bit better (51/100 vs 37/100). In the "portability" category, the Samsung Galaxy Z Flip8 notably outperforms the Samsung Galaxy M21 (80/100 vs 57/100).

Samsung Galaxy Z Flip8: The Samsung Galaxy Z Flip8 is a better fit for gamers and power users.

Specs comparison

Specification	Samsung Galaxy M21	Samsung Galaxy Z Flip8
Processor	Exynos 9611	Exynos 2600
AnTuTu	355351	3113347
Geekbench Single	365	3235
Geekbench Multi	1107	10904
Display	6.4" Super AMOLED	6.9" Foldable Dynamic LTPO AMOLED 2X
Resolution	1080x2340	1080x2520
Refresh rate	—	120 Hz
Battery	6000 mAh	4300 mAh
Charging	15W	25W
Wireless charging	0W	15W
Main camera	48 MP	50 MP
Ultrawide	8 MP	12 MP
Front camera	20 MP	10 MP
RAM	4GB / 6GB	12GB
Storage	64GB / 128GB	256GB / 512GB
OS	Android 10.0; One UI 2	Android 16 / One UI 8.5
Brightness (peak)	420 nits	2600 nits
NFC	no	yes
Protection	—	IP48
Dimensions	159.0×75.1×8.9 mm	—
Weight	188 g	180 g
Launch price	—	$1099