Home/Oppo/Oppo RX17 Neo vs vivo X21 UD
Oppo RX17 Neo

Oppo RX17 Neo

#2695
vivo X21 UD

vivo X21 UD

#2702

Category Breakdown

Oppo RX17 Neo
vivo X21 UD
Performance
77.979.6
Camera
28.419.1
Display
82.882.8
Battery
26.925.7
Build
67.976.2
Connectivity
51.259.3
Audio
8.98.9
Overall
46.846.8

Summary

  • The Oppo RX17 Neo features a 6.41-inch Super AMOLED display with a resolution of 1080 x 2340 pixels, while the vivo X21 UD has a slightly smaller 6.28-inch Super AMOLED display at 1080 x 2280 pixels, both offering similar pixel densities.
  • In terms of performance, both devices utilize the Qualcomm Snapdragon 660 chipset, but the X21 UD has a slightly faster CPU clock speed and more RAM at 6GB compared to the RX17 Neo's 4GB.
  • The RX17 Neo's rear camera setup includes a 16 MP main sensor, while the X21 UD has a 12 MP main sensor but features a higher-resolution 5 MP depth sensor.
  • Battery capacity is higher in the RX17 Neo at 3600 mAh compared to the X21 UD's 3200 mAh, although the latter supports faster charging at 18W.
  • Both phones run Android 8.1, but the RX17 Neo uses ColorOS 5.2, while the X21 UD operates on Funtouch 4, offering different software experiences.
  • Build quality differs as well, with the RX17 Neo having a glass front and plastic back, whereas the X21 UD features Gorilla Glass 3 on the front and an aluminum back and frame.

Side-by-side Specification Comparison

Oppo RX17 Neo
vivo X21 UD

General

Release Date

2018
2018

Announced

2018
2018

Description

N/A
N/A

Display

Size

6.41"
6.28"

Type

Super AMOLED
Super AMOLED

Resolution

1080 x 2340 pixels, 19.5:9 ratio (~402 ppi density)
1080 x 2280 pixels, 19:9 ratio (~402 ppi density)

PPI

1080
1080

Refresh Rate

60Hz
60Hz

HDR Support

Protection

N/A
Corning Gorilla Glass 3

Performance

Chipset

Qualcomm SDM660 Snapdragon 660 (14 nm)
Qualcomm SDM660 Snapdragon 660 (14 nm)

CPU

Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)

GPU

Adreno 512
Adreno 512

Memory

128GB 4GB RAM
128GB 6GB RAM

Expandable Storage

Card Slot

microSDXC (dedicated slot)
microSDXC (uses shared SIM slot)

Camera

Main Camera

16 MP, f/1.8, 1/2.8", 1.12µm, PDAF2 MP, f/2.4, (depth)
12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF5 MP, f/2.4, (depth)

Main Camera Features

LED flash, HDR, panorama
LED flash, HDR, panorama

Front Camera

25 MP, f/2.0, 1/2.8", 0.9µm
12 MP, f/2.0, (wide), 1/2.8", 1.28µm

Front Camera Features

HDR
N/A

Video Recording

1080p@30fps
1080p@30fps

Selfie Video

1080p@30fps
1080p@30fps

Optical Stabilization

Night Mode

Raw Photo Support

Battery

Capacity

3600 mAh
3200 mAh

Battery Details

Li-Ion 3600 mAh, non-removable
Li-Ion 3200 mAh, non-removable

Charging Details

10W wired
18W wired

Fast Charging

Wireless Charging

Build & Safety

Dimensions

158.3 x 75.5 x 7.4 mm (6.23 x 2.97 x 0.29 in)
154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)

Weight

156 g
156.2 g

Materials

Glass front, plastic back, plastic frame
Glass front (Gorilla Glass 3), aluminum back, aluminum frame

Colors

Mocha Red, Astral Blue
Black, Ruby Red

Foldable

SAR

N/A
N/A

Connectivity

SIM

Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM

Network

GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE

Network Speed

HSPA 42.2/5.76 Mbps, LTE (2CA) Cat12 600/150 Mbps
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps

5G

4G

WiFi

Wi-Fi 802.11 b/g/n, 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

NFC

USB

microUSB 2.0, OTG
microUSB 2.0, OTG

IR Blaster

Headphone Jack

Radio

Positioning

GPS
GPS, GLONASS

Audio

Stereo Speakers

Loudspeaker

Yes
Yes

Audio Jack

Yes
Yes

Software & Security

Operating System

Android 8.1 (Oreo), ColorOS 5.2
Android 8.1 (Oreo), Funtouch 4

Fingerprint

Face Unlock

Sensors

Fingerprint (under display, optical), accelerometer, proximity, compass
Fingerprint (under display, optical), accelerometer, proximity, compass