NEC N820
#9030
ZTE X990
#8988Category Breakdown
NEC N820
ZTE X990
Performance
54.354.3
Camera
41.841.9
Display
57.057.0
Battery
43.543.5
Build
70.870.8
Overall
51.751.8
Summary
- The NEC N820, released in 2003, features a compact build with dimensions of 101 x 48 x 24 mm and weighs 110g, while the ZTE X990, launched in 2010, is slightly larger at 107 x 61 x 12 mm and lighter at 90g.
- The N820 has a 2.2-inch TFT display with a resolution of 320 x 240 pixels, whereas the X990 offers a 2.5-inch TFT resistive touchscreen with the same resolution but a lower pixel density of 160 ppi.
- In terms of performance, the N820 has 4GB of RAM and 4MB of storage, while the X990 improves this with 5GB of RAM and 5MB of storage.
- The camera capabilities differ significantly, with the N820 lacking a rear camera, while the X990 features a 2 MP rear camera capable of video recording.
- Both devices have unspecified battery capacities and lack wireless charging, but the X990 supports Bluetooth 2.0.
- The N820 runs on an unspecified OS, while the X990 operates on Microsoft Windows Mobile 6.5 Professional, providing a more modern software experience.
Side-by-side Specification Comparison
NEC N820
ZTE X990
General
Release Date
2003
2010
Announced
2003
2010
Description
Also known as Nec e535
Also known as Messenger by SFR 251 Edition
Display
Size
2.2"
2.5"
Type
TFT, 65K colors
TFT resistive touchscreen, 256K colors
Resolution
320 x 240 pixels, 4:3 ratio (~182 ppi density)
320 x 240 pixels, 4:3 ratio (~160 ppi density)
PPI
320
320
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
N/A
CPU
N/A
N/A
GPU
N/A
N/A
Memory
4MB
5MB
Expandable Storage
✗
✗
Card Slot
No
microSDHC (dedicated slot)
Camera
Main Camera
N/A
2 MP
Main Camera Details
VGA
2 MP
Front Camera
N/A
N/A
Front Camera Details
N/A
N/A
Video Recording
No
Yes
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
N/A
N/A
Battery Details
Removable Li-Ion battery
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
101 x 48 x 24 mm, 90 cc (3.98 x 1.89 x 0.94 in)
107 x 61 x 12 mm (4.21 x 2.40 x 0.47 in)
Weight
110 g
90 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
N/A
White
Foldable
✗
✗
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM
GSM
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
No
2.0, A2DP
NFC
✗
✗
USB
Proprietary
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Software
Operating System
N/A
Microsoft Windows Mobile 6.5 Professional
OS Version
N/A
Microsoft Windows Mobile 6.5 Professional
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A
Audio
Stereo Speakers
✗
✗
Loudspeaker
No
Yes
Audio Jack
No
No