Category Breakdown
Oppo Reno2 Z
Xiaomi Redmi K20
Performance
64.862.5
Camera
47.948.9
Display
79.579.5
Battery
43.543.5
Build
77.877.8
Overall
61.661.2
Summary
- The Oppo Reno2 Z and Xiaomi Redmi K20 both feature premium glass and aluminum builds, with the Reno2 Z being slightly larger and heavier at 195g compared to the K20's 191g.
- The Reno2 Z has a 6.53-inch AMOLED display, while the K20 offers a slightly smaller 6.39-inch Super AMOLED display with HDR support, providing a marginally better viewing experience.
- In terms of performance, the Reno2 Z is powered by the Mediatek Helio P90, whereas the K20 utilizes the Qualcomm Snapdragon 730, both capable but with the Snapdragon generally offering better efficiency.
- Camera-wise, both phones have a 48 MP main sensor, but the K20 includes a telephoto lens for 2x optical zoom, enhancing its versatility.
- Both devices are equipped with a 4000mAh battery, but the Reno2 Z supports 20W charging compared to the K20's 18W.
- Software-wise, the Reno2 Z runs ColorOS 11 based on Android 11, while the K20 operates on MIUI 12 based on Android 10, with both offering upgrade paths.
Side-by-side Specification Comparison
Oppo Reno2 Z
Xiaomi Redmi K20
General
Release Date
2019
2019
Announced
2019, August 28
2019
Description
N/A
N/A
Display
Size
6.53"
6.39"
Type
AMOLED
Super AMOLED, HDR
Resolution
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✓
Protection
Corning Gorilla Glass 5
Corning Gorilla Glass 5
Performance
Chipset
Mediatek MT6779 Helio P90 (12 nm)
Qualcomm SDM730 Snapdragon 730 (8 nm)
CPU
Octa-core (2x2.2 GHz Cortex-A75 & 6x2.0 GHz Cortex-A55)
Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPU
PowerVR GM9446
Adreno 618
Memory
128GB 8GB RAM, 256GB 8GB RAM
64GB 6GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
No
Camera
Main Camera
48 MP
48 MP
Main Camera Details
48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm2 MP B/W, f/2.4, 1/5.0", 1.75µm2 MP, f/2.4, (depth)
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.4, 53mm (telephoto), 1/4.0", 1.12µm, PDAF, 2x optical zoom13 MP, f/2.4, 12mm (ultrawide), 1/3.1", 1.12µm
Front Camera
16 MP
20 MP
Front Camera Details
Motorized pop-up 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Motorized pop-up 20 MP, f/2.2, (wide), 1/3.4", 0.8µm
Video Recording
4K@30fps, 1080p@30fps (gyro-EIS)
4K@30fps, 1080p@30/120/240fps, 1080p@960fps
Selfie Video
1080p@30fps
1080p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
4000 mAh
4000 mAh
Battery Details
Li-Po 4000 mAh, non-removable
Li-Po 4000 mAh, non-removable
Charging Details
20W wired
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
162.4 x 75.8 x 8.7 mm (6.39 x 2.98 x 0.34 in)
156.7 x 74.3 x 8.8 mm (6.17 x 2.93 x 0.35 in)
Weight
195 g
191 g
Materials
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Water Resistance
N/A
N/A
Colors
Sky White, Luminous Black
Carbon black, Red flame, Glacier blue, Pearl White
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE, aptX HD
NFC
✗
✓
USB
USB Type-C
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, GLONASS, GALILEO, BDS
Software
Operating System
Android 9.0 (Pie), upgradable to Android 11, ColorOS 11
Android 9.0 (Pie), upgradable to Android 10, MIUI 12
OS Version
Android 9.0 (Pie), upgradable to Android 11, ColorOS 11
Android 9.0 (Pie), upgradable to Android 10, MIUI 12
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

