Oppo A78 4G vs vivo S12

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 2100

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66

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

-

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

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

AMOLED

AMOLED
Physical size

6.43 inches

6.44 inches
Resolution

1080 x 2400 pixels

1080 x 2400 pixels
Pixel density

409 ppi

409 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5

Scratch resistant, 2.5D curved glass screen
Display features

90Hz, 430 nits

-

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 50 MP, f/1.8 , 77˚

(wide) , 108 MP, f/1.9 , 26 mm, 1/1.52"
(depth) , 2 MP, f/2.4

(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
(macro) , 2 MP, f/2.4
Primary camera resolution

8190 x 6120 pixels

12000 x 9000 pixels
Primary camera video

1080p@30fps

4K@30fps, 1080p@30fps, gyro-EIS
Primary camera flash

LED flash

dual-LED flash
Camera features

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

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

Selfie camera
Selfie camera type

Single

Dual
Selfie camera

(wide) , 8 MP, f/2.0 , 83˚ , 1/4" , 1.12 µm

(wide) , 44 MP, f/2.0
(ultrawide) , 8 MP, f/2.3 , 105˚
Selfie camera resolution

3264 x 2448 pixels

-
Selfie camera features

Face unlock, HDR

Face unlock, autofocus, HDR, face detection, panorama, geotagging, digital image stabilization
Selfie camera video

1080p@30fps

4K@30fps, 1080p@30fps

Connectivity
WLAN

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

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

-

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes (market dependent)

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

42000 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC, 67W (76% in 30 min)

Vivo Super FlashCharge, 44W