Samsung Galaxy S23 Ultra vs vivo Y21a

Samsung Galaxy S23 Ultra

vivo Y21a

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

HSDPA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - USA

LTE frequency band 1, 3, 5, 8, 38, 40, 41
5G network

5G band 1, 7, 28, 41, 66, 71, 78, 258, 260, 261 SA/NSA/Sub6/mmWave - USA; SA/NSA/Sub6 - global version

-
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

11.5 Mbps

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE-A (7CA)

LTE, 301 Mbps download, 151 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame

Glass front, plastic frame, plastic back
SIM

Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

163.4 mm

164.3 mm
Width

78.1 mm

76.1 mm
Thickness

8.9 mm

8 mm
Weight

234 g

182 g
Stylus

Yes

-
Payment

Samsung Pay (Visa, MasterCard certified)

-
Waterproof

IP68 (1.5m and 30 mins)

-
Dust proof

IP68

-
Build features

Armor aluminum frame with tougher drop and scratch resistance

-
Colors

Black, Blue, Cream, Green, Graphite, Lavender, Lime, Red, BMW M Edition

Blue, Diamond Glow

Main camera
Camera type

Quad

Dual
Main camera

(wide) , 200 MP, f/1.7 , 85˚ , 24 mm, 1/1.3" , 0.6 µm, 100x digital zoom

(wide) , 13 MP, f/2.2
(periscope telephoto) , 10 MP, f/4.9 , 230 mm, 1/3.52" , 1.12 µm, 10x optical zoom

(macro) , 2 MP, f/2.4
(telephoto) , 10 MP, f/2.4 , 70 mm, 1/3.52" , 1.12 µm, 3x optical zoom
(ultrawide) , 12 MP, f/2.2 , 120˚ , 13 mm, 1/2.55" , 1.4 µm
Primary camera resolution

-

4160 x 3120 pixels
Primary camera video

8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 1080p@960fps, HDR10+, stereo sound rec., gyro-EIS

1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, optical zoom, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, laser autofocus, expert RAW, astro hyperlapse, adaptive VDIS

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 6E

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
WiFi Tri-Band

Yes

-
USB

Type-C 3.2

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.3

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

Yes

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes