Screen size
Galaxy F08Winner: 6.7"+7.5%
Galaxy S21 5G6.2"
Quick verdict
Galaxy S21 5G leads the measured specs 15-6.
Measured wins
Galaxy F08
6
spec wins
Ties
2
equal specs
Galaxy S21 5G
15
spec wins
Overall winner
Screen size
Technology
Galaxy F08
GSM / HSPA / LTE
Galaxy S21 5G
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
Galaxy F08
GSM 850 / 900 / 1800 / 1900
Galaxy S21 5G
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
3G bands
Galaxy F08
HSDPA 850 / 900 / 2100
Galaxy S21 5G
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
4G bands
Galaxy F08
1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
5G support
NFC
3.5mm jack
SD card
Stereo speakers
Galaxy S21 5G
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G991U1, 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G991B
Speed
Galaxy F08
HSPA, LTE
Galaxy S21 5G
HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
5G bands
Galaxy F08
-
Galaxy S21 5G
2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1, 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G991B
Announced
Galaxy F08
2026, October 01
Galaxy S21 5G
2021, January 14
Status
Galaxy F08
Released Oct 2026
Galaxy S21 5G
Available. Released 2021, January 29
Dimensions
Galaxy F08
167.4 x 77.4 x 8 mm (6.59 x 3.05 x 0.31 in)
Galaxy S21 5G
151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
Weight
Galaxy F08
197 g (6.95 oz)
Galaxy S21 5G
169 g (Sub6), 171 g (mmWave) (5.96 oz)
Build
Galaxy F08
Glass front, plastic back, plastic frame
Galaxy S21 5G
Glass front (Gorilla Glass Victus), plastic back, aluminum frame
SIM
Galaxy F08
Nano-SIM + Nano-SIM
Galaxy S21 5G
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Other
Galaxy F08
IP64 dust tight and water resistant (water splashes)
Galaxy S21 5G
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Type
Galaxy F08
PLS LCD, 90Hz
Galaxy S21 5G
Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
Size
Galaxy F08
6.7 inches, 108.4 cm2 (~83.6% screen-to-body ratio)
Galaxy S21 5G
6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)
Resolution
Galaxy F08
720 x 1600 pixels, 20:9 ratio (~262 ppi density)
Galaxy S21 5G
1080 x 2400 pixels, 20:9 ratio (~421 ppi density)
Protection
Galaxy F08
-
Galaxy S21 5G
Corning Gorilla Glass Victus
OS
Galaxy F08
Android 17, up to 6 major OS updates, One UI 9
Galaxy S21 5G
Android 11, up to 4 major Android upgrades, One UI 6.1
Chipset
Galaxy F08
Mediatek Helio G99+ (6 nm)
Galaxy S21 5G
Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
CPU
Galaxy F08
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Galaxy S21 5G
Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
GPU
Galaxy F08
Mali-G57 MC2
Galaxy S21 5G
Mali-G78 MP14 - InternationalAdreno 660 - USA/China
Card slot
Galaxy F08
microSDXC (dedicated slot)
Galaxy S21 5G
No
Internal
Galaxy F08
64GB 4GB RAM
Galaxy S21 5G
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Other
Galaxy F08
-
Galaxy S21 5G
UFS 3.1
Dual
Galaxy F08
50 MP, f/1.8, (wide), 1/2.76", 0.64µm, PDAF Auxiliary lens
Galaxy S21 5G
-
Features
Galaxy F08
LED flash
Galaxy S21 5G
LED flash, auto-HDR, panorama
Video
Galaxy F08
1080p@30/60fps
Galaxy S21 5G
8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Triple
Galaxy F08
-
Galaxy S21 5G
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Single
Galaxy F08
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Galaxy S21 5G
10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
Video
Galaxy F08
Yes
Galaxy S21 5G
4K@30/60fps, 1080p@30fps
Features
Galaxy F08
-
Galaxy S21 5G
HDR
Loudspeaker
Galaxy F08
Yes
Galaxy S21 5G
Yes, with stereo speakers
3.5mm jack
Galaxy F08
Yes
Galaxy S21 5G
No
Other
Galaxy F08
-
Galaxy S21 5G
High-bitrate audio support
WLAN
Galaxy F08
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Galaxy S21 5G
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth
Galaxy F08
5.3, A2DP, LE
Galaxy S21 5G
5.0, A2DP, LE
Positioning
Galaxy F08
GPS, GLONASS, GALILEO, BDS
Galaxy S21 5G
GPS, GLONASS, BDS, GALILEO
NFC
Galaxy F08
No
Galaxy S21 5G
Yes
Radio
Galaxy F08
FM radio
Galaxy S21 5G
FM radio (Snapdragon model only; market/operator dependent)
USB
Galaxy F08
USB Type-C 2.0
Galaxy S21 5G
USB Type-C 3.2, OTG
Sensors
Galaxy F08
Fingerprint (side-mounted), accelerometer, proximity
Galaxy S21 5G
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Other
Galaxy F08
-
Galaxy S21 5G
Samsung DeX, Samsung Wireless DeX (desktop experience support)
Type
Galaxy F08
6000 mAh
Galaxy S21 5G
Li-Ion 4000 mAh
Charging
Galaxy F08
25W wired
Galaxy S21 5G
25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
Colors
Galaxy F08
Blue
Galaxy S21 5G
Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
Models
Galaxy F08
SM-E085F, SM-E085F/DS
Galaxy S21 5G
SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910, SM-G991Q, SCG09
SAR
Galaxy F08
0.62 W/kg (head)
Galaxy S21 5G
0.74 W/kg (head) 1.08 W/kg (body)
SAR EU
Galaxy F08
0.75 W/kg (head) 1.29 W/kg (body)
Galaxy S21 5G
0.46 W/kg (head) 1.51 W/kg (body)
Price
Galaxy F08
About 160 EUR
Galaxy S21 5G
$ 159.99 / C$ 271.75 / £ 146.90 / € 189.99