Screen size
Galaxy A276.7"
Galaxy S21 Ultra 5GWinner: 6.8"+1.5%
Quick verdict
Galaxy S21 Ultra 5G leads the measured specs 13-2.
Measured wins
Galaxy A27
2
spec wins
Ties
8
equal specs
Galaxy S21 Ultra 5G
13
spec wins
Overall winner
Screen size
Technology
Galaxy A27
GSM / HSPA / LTE / 5G
Galaxy S21 Ultra 5G
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
Galaxy A27
GSM 850 / 900 / 1800 / 1900
Galaxy S21 Ultra 5G
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
3G bands
Galaxy A27
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Galaxy S21 Ultra 5G
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
4G bands
Galaxy A27
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
Battery
equal specsWired charging
equal specsWeight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
Stereo speakers
LTE
Galaxy S21 Ultra 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-G998U1, 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G998B
5G bands
Galaxy A27
SA/NSA/Sub6
Galaxy S21 Ultra 5G
2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1, 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
Speed
Galaxy A27
HSPA, LTE, 5G
Galaxy S21 Ultra 5G
HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
Announced
Galaxy A27
Not announced yet
Galaxy S21 Ultra 5G
2021, January 14
Status
Galaxy A27
Rumored
Galaxy S21 Ultra 5G
Available. Released 2021, January 29
Dimensions
Galaxy A27
162.3 x 78.6 x 7.9 mm (6.39 x 3.09 x 0.31 in)
Galaxy S21 Ultra 5G
165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
Weight
Galaxy A27
-
Galaxy S21 Ultra 5G
227 g (Sub6), 229 g (mmWave) (8.01 oz)
Build
Galaxy A27
Glass front (Gorilla Glass Victus+), plastic frame, glass back (Gorilla Glass Victus+)
Galaxy S21 Ultra 5G
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
SIM
Galaxy A27
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM
Galaxy S21 Ultra 5G
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Other
Galaxy A27
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Galaxy S21 Ultra 5G
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus support
Type
Galaxy A27
Super AMOLED, 120Hz
Galaxy S21 Ultra 5G
Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
Size
Galaxy A27
6.7 inches, 110.2 cm2 (~86.4% screen-to-body ratio)
Galaxy S21 Ultra 5G
6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
Resolution
Galaxy A27
1080 x 2340 pixels, 19.5:9 ratio (~385 ppi density)
Galaxy S21 Ultra 5G
1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Protection
Galaxy A27
Corning Gorilla Glass Victus+
Galaxy S21 Ultra 5G
Corning Gorilla Glass Victus
OS
Galaxy A27
Android 16, up to 6 major Android upgrades, One UI 8.5
Galaxy S21 Ultra 5G
Android 11, up to 4 major Android upgrades, One UI 6.1
Chipset
Galaxy A27
Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)
Galaxy S21 Ultra 5G
Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
CPU
Galaxy A27
Octa-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)
Galaxy S21 Ultra 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 A27
Adreno 710
Galaxy S21 Ultra 5G
Mali-G78 MP14 - InternationalAdreno 660 - USA/China
Card slot
Galaxy A27
microSDXC (uses shared SIM slot)
Galaxy S21 Ultra 5G
No
Internal
Galaxy A27
128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Galaxy S21 Ultra 5G
128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
Other
Galaxy A27
-
Galaxy S21 Ultra 5G
UFS 3.1
Triple
Galaxy A27
50 MP, f/1.8, 27mm (wide), 1/2.76", 0.64µm, PDAF, OIS 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro)
Galaxy S21 Ultra 5G
-
Features
Galaxy A27
LED flash, panorama, HDR
Galaxy S21 Ultra 5G
Laser AF, LED flash, auto-HDR, panorama
Video
Galaxy A27
4K@30fps, 1080p@30fps, 720p@480fps, gyro-EIS
Galaxy S21 Ultra 5G
8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Quad
Galaxy A27
-
Galaxy S21 Ultra 5G
108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
Single
Galaxy A27
13 MP, f/2.2, (wide), 1/3.06", 1.12µm
Galaxy S21 Ultra 5G
40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Video
Galaxy A27
1080p@30fps
Galaxy S21 Ultra 5G
4K@30/60fps, 1080p@30fps
Features
Galaxy A27
-
Galaxy S21 Ultra 5G
HDR
Loudspeaker
Galaxy A27
Yes
Galaxy S21 Ultra 5G
Yes, with stereo speakers
3.5mm jack
Galaxy A27
No
Galaxy S21 Ultra 5G
No
Other
Galaxy A27
-
Galaxy S21 Ultra 5G
High-bitrate audio support
WLAN
Galaxy A27
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Galaxy S21 Ultra 5G
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth
Galaxy A27
5.4, A2DP, LE
Galaxy S21 Ultra 5G
5.2, A2DP, LE
Positioning
Galaxy A27
GPS, GALILEO, GLONASS, BDS, QZSS
Galaxy S21 Ultra 5G
GPS, GLONASS, BDS, GALILEO
NFC
Galaxy A27
Yes (market/region dependent)
Galaxy S21 Ultra 5G
Yes
Radio
Galaxy A27
Unspecified
Galaxy S21 Ultra 5G
FM radio (Snapdragon model only; market/operator dependent)
USB
Galaxy A27
USB Type-C 2.0, OTG
Galaxy S21 Ultra 5G
USB Type-C 3.2, OTG
Sensors
Galaxy A27
Fingerprint (side-mounted), accelerometer, gyro, compass
Galaxy S21 Ultra 5G
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Other
Galaxy A27
Virtual proximity sensing
Galaxy S21 Ultra 5G
Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support
Type
Galaxy A27
5000 mAh
Galaxy S21 Ultra 5G
Li-Ion 5000 mAh
Charging
Galaxy A27
25W wired
Galaxy S21 Ultra 5G
25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
Colors
Galaxy A27
Black; other colors
Galaxy S21 Ultra 5G
Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
Models
Galaxy A27
SM-A276E, SM-A276E/DS, SM-A276E/DSN, SM-A276B, SM-A276B/DS, SM-A276B/DSN, SM-A276U, SM-A276U1, SM-A276W
Galaxy S21 Ultra 5G
SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
SAR
Galaxy A27
-
Galaxy S21 Ultra 5G
0.77 W/kg (head) 1.02 W/kg (body)
SAR EU
Galaxy A27
-
Galaxy S21 Ultra 5G
0.71 W/kg (head) 1.58 W/kg (body)
Price
Galaxy A27
-
Galaxy S21 Ultra 5G
$ 200.79 / C$ 407.99 / £ 207.95 / € 259.99