Google Pixel 7a vs vivo S18

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71 - GWKK3, G0DZQ; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 21, 25, 28, 32, 38, 39, 40, 41, 42, 66 - GHL1X, G82U8

LTE frequency band 1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41
5G network

5G band 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6 - GWKK3; 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78, 260, 261 SA/NSA/Sub6/mmWave - G0DZQ; 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 76, 77, 78, 79 SA/NSA/Sub6 - GHL1X, G82U8

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

11.52 Mbps
EV-DO speed

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

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

LTE-A(CA)

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 3), aluminum frame, plastic back

Glass front, plastic frame
SIM

Nano-SIM and eSIM

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

152 mm

164.4 mm
Width

72.9 mm

75.1 mm
Thickness

9 mm

7.5 mm
Weight

193.5 g

185.8 g
Waterproof

IP67 (1.5m for 30 mins)

IP54
Dust proof

IP67

IP54
Colors

Charcoal, Coral, Sea, Snow

Black, Blue/Green, Silver

Main camera
Camera type

Dual

Dual
Main camera

(wide) , 64 MP, f/1.9 , 80˚ , 26 mm, 1/1.73" , 0.8 µm, 8x digital zoom

(wide) , 50 MP, f/1.9 , 1/1.55" , 1.0 µm
(ultrawide) , 13 MP, f/2.2 , 120˚ , 1.12 µm

(ultrawide) , 8 MP, f/2.2
Primary camera resolution

9280 x 2160 pixels

8120 x 6180 pixels
Primary camera video

4K@30/60fps, 1080p@30/60/120/240fps, OIS

4K@30fps, 1080p@30fps
Primary camera flash

dual-LED flash

Ring-LED flash
Camera features

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical 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, laser autofocus

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical 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

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(ultrawide) , 13 MP, f/2.2 , 95˚ , 20 mm, 1.12 µm

(wide) , 50 MP, f/2.0 , 22 mm
Selfie camera resolution

4160 x 3120 pixels

8192 x 6144 pixels
Selfie camera features

Face unlock, HDR, face detection

Face unlock, HDR, face detection, autofocus
Selfie camera video

4K@30fps, 1080p@30fps

1080p@30fps

Connectivity
WLAN

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

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

v5.3

v5.4
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD, aptX Adaptive, aptX Lossless
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

-

Features
Sensors

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Accelerometer, color spectrum, compass, fingerprint, gyroscope, proximity