OnePlus Ace 2 vs Xiaomi 12S Ultra

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

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

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

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G network

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

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 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 (CA), 1174 Mbps download, 150 Mbps upload

LTE-A
GPRS

Yes

Class 33
EDGE

Yes

Class 33

Design
Build

Glass front (Asahi Glass), aluminum frame, glass back (Gorilla Glass 5)

Glass front (Gorilla Glass Victus), eco leather back, aluminum frame
SIM

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

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

163.4 mm

163.2 mm
Width

74.3 mm

75 mm
Thickness

8.7 mm

9.1 mm
Weight

204 g

225 g
Colors

Black, Blue

Black, Green

Display
Display type

AMOLED

LTPO2 AMOLED
Physical size

6.74 inches

6.73 inches
Resolution

1240 x 2772 pixels

1440 x 3200 pixels
Pixel density

451 ppi

522 ppi
Display colors

1073741824

1073741824
Protection

Asahi Glass

Scratch resistant, Corning Gorilla Glass Victus
Display features

120Hz, HDR10+

120Hz, Dolby Vision, HDR10+, 1000 nits (HBM), 1500 nits (peak)

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.19 GHz Cortex-X2

Single-core 3.19 GHz Cortex-X2
CPU(second)

Triple-core 2.75 GHz Cortex-A710

Triple-core 2.75 GHz Cortex-A710
CPU(third)

Quad-core 1.8 GHz Cortex-A510

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SM8475 Snapdragon 8+ Gen 1

Qualcomm SM8475 Snapdragon 8+ Gen 1
GPU

Adreno 730

Adreno 730
Memory RAM

12, 16 GB

8, 12 GB
Internal storage

256, 512 GB

256, 512 GB
Memory card

No

No
Storage

UFS 3.1

UFS 3.1

Main camera
Camera type

Triple

Quad
Main camera

(wide) , 50 MP, f/1.8 , 24 mm, 1/1.56" , 1.0 µm, 10x digital zoom

(wide) , 50 MP, f/1.9 , 23 mm, 1.0" , 1.6 µm
(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm

(periscope telephoto) , 48 MP, f/4.1 , 120 mm, 1/2.0" , 0.8 µm
89˚ , (macro) , 2 MP, f/2.4 , 1/5" , 1.75 µm

128˚ , (ultrawide) , 48 MP, f/2.2 , 1/2.0" , 0.8 µm, 13 mm
Primary camera resolution

8190 x 6120 pixels

-
Primary camera video

4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS

8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, 720p@3840fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K, 1080p)
Primary camera optics

-

Leica lens
Primary camera flash

LED flash

dual-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, macro-mode, phase detection autofocus, contrast detection autofocus, laser autofocus

Autofocus, continuous autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, super night mode 2.0, HDR10 video recording

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.4 , 26 mm, 1/3.09" , 1.0 µm

(wide) , 32 MP, f/2.4 , 25 mm, 1/3" , 0.7 µm, 80˚
Selfie camera resolution

4608 x 3456 pixels

-
Selfie camera features

Face unlock, HDR, face detection, digital image stabilization

Face unlock, HDR, panorama
Selfie camera video

1080p@30fps

1080p@30/60fps

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

Yes
WLAN DLNA

-

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.3

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD, aptX Adaptive
Infrared

-

Yes
NFC

Yes, eSE, HCE

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, color spectrum, compass, fingerprint, gyroscope, proximity

Accelerometer, barometer, color spectrum, compass, fingerprint, gyroscope, virtual proximity sensing

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

4860 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC, 100W (100% in 25 min)

Quick Charge 4+, 67W (100% in 41 min)
Wireless reverse charging

-

Yes, 10W
Fast wireless charging

-

Yes, 50W (100% in 52 min)