Oppo Reno9 vs Xiaomi Mi 11i

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900
3G network

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

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41
5G network

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

5G band 1, 3, 28, 41, 77, 78, 79 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A (CA)

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

AMOLED

Super AMOLED
Physical size

6.7 inches

6.67 inches
Resolution

1080 x 2412 pixels

1080 x 2400 pixels
Pixel density

394 ppi

395 ppi
Display colors

1073741824

1073741824
Protection

Scratch resistant, 3D curved glass screen, Asahi Glass AGC DT-Star2

Scratch resistant, Corning Gorilla Glass 5
Display features

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

120Hz, HDR10+, 1300 nits (peak)

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 64 MP, f/1.8 , 80˚ , 26 mm, 1/2" , 0.7 µm

(wide) , 108 MP, f/1.8 , 119˚ , 26 mm, 1/1.52" , 0.7 µm
(depth) , 2 MP, f/2.4 , 89˚ , 1/5" , 1.75 µm

(ultrawide) , 8 MP, f/2.2
(macro) , 5 MP, f/2.4 , 50 mm, 1/5.0" , 1.12 µm
Primary camera resolution

9280 x 6920 pixels

12000 x 9000 pixels
Primary camera video

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

8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous 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

Autofocus, continuous autofocus, 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, laser autofocus, AI 2.0, night mode 2.0, stagger HDR

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 32 MP, f/2.4 , 22 mm, 1/2.74" , 0.8 µm

(wide) , 20 MP, f/2.5 , 1/3.4" , 0.8 µm
Selfie camera resolution

-

5184 x 3880 pixels
Selfie camera features

Face unlock, autofocus

Face unlock, HDR
Selfie camera video

1080p@30fps, gyro-EIS

1080p@30fps, 720p@120fps

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
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

Yes
Bluetooth

v5.2

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
Infrared

Yes

Yes
NFC

Yes, eSE, HCE, NFC-SIM

Yes (market dependent)
GPS

Yes, with A-GPS

Yes, with dual-band 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, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

4500 mAh

4520 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC, 67W (33% in 10 min, 100% in 44 min)

Quick Charge 3+ (100% in 52 min)
Reverse charging

Yes

-