OnePlus Ace vs vivo Y51a

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41

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

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

-
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

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

LTE-A

LTE-A, 603 Mbps download, 151 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

OLED

IPS LCD
Physical size

6.7 inches

6.58 inches
Resolution

1080 x 2412 pixels

1080 x 2408 pixels
Pixel density

394 ppi

401 ppi
Display colors

1073741824

16777216
Protection

Scratch resistant, Corning Gorilla Glass 5

-
Display features

1B colors, 120Hz, HDR10+, 500 nits (typ), 800 nits (HBM), 950 nits (peak)

-

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 50 MP, f/1.9 , 24 mm, 1/1.56" , 1.0 µm

(wide) , 48 MP, f/1.8 , 1/2.0" , 0.8 µm
(ultrawide) , 8 MP, f/2.2 , 16 mm, 1/4.0" , 1.12 µm

(ultrawide) , 8 MP, f/2.2 , 1/4.0" , 1.12 µm, 120˚
88˚ , (macro) , 2 MP, f/2.4 , 21 mm, 1/5" , 1.75 µm

(macro) , 2 MP, f/2.4
Primary camera resolution

8192 x 6144 pixels

8000 x 6000 pixels
Primary camera video

4K@30/60fps, 1080p@30/60/240fps, gyro-EIS

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

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital 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, phase detection autofocus, UIS, UIS Max

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

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.4 , 16 mm, 1/3.09" , 1.0 µm

(wide) , 16 MP, f/2.0 , 1/3.06" , 1.0 µm
Selfie camera resolution

4608 x 3456 pixels

4640 x 3456 pixels
Selfie camera features

HDR, panorama

-
Selfie camera video

1080p@30fps, gyro-EIS

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
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.2

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