Category Breakdown
Motorola KRZR K3
ZTE N721
Performance
54.358.8
Camera
41.941.9
Display
53.453.4
Battery
43.543.5
Build
70.870.8
Overall
51.052.4
Summary
- The Motorola KRZR K3 features a compact build with dimensions of 103 x 42.3 x 16.3 mm and weighs 110g, while the ZTE N721 is slightly larger at 106 x 56.2 x 14.2 mm and lighter at 105g.
- The KRZR K3 has a 2.0-inch TFT display with a resolution of 240 x 320 pixels, whereas the N721 offers a larger 2.8-inch TFT display with the same resolution but lower pixel density.
- In terms of performance, the KRZR K3 has 50MB of storage and 50MB of RAM, while the N721 provides 150MB of storage and 150MB of RAM, indicating better multitasking capabilities.
- Both devices have a 2 MP rear camera, but the N721 supports video recording.
- The KRZR K3 is equipped with a 910mAh battery, while the N721 has a larger 1100mAh battery, potentially offering longer usage time.
- The KRZR K3 runs on an unspecified operating system, while the N721 operates on Android OS, providing a more modern software experience.
Side-by-side Specification Comparison
Motorola KRZR K3
ZTE N721
General
Release Date
2007
2011
Announced
2007
2011
Description
N/A
N/A
Display
Size
2"
2.8"
Type
TFT, 256K colors
TFT, 56K colors
Resolution
240 x 320 pixels, 4:3 ratio (~200 ppi density)
240 x 320 pixels, 4:3 ratio (~143 ppi density)
PPI
240
240
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
50MB
150MB
Expandable Storage
✗
✗
Card Slot
microSD (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
2 MP
2 MP
Main Camera Details
2 MP
2 MP
Front Camera
N/A
N/A
Front Camera Details
VGA videocall camera
N/A
Video Recording
QCIF
Yes
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
910 mAh
1100 mAh
Battery Details
Removable Li-Ion 910 mAh battery
Removable Li-Ion 1100 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
103 x 42.3 x 16.3 mm, 63 cc (4.06 x 1.67 x 0.64 in)
106 x 56.2 x 14.2 mm (4.17 x 2.21 x 0.56 in)
Weight
110 g
105 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Dark Pearl Gray, Stone Gray
Black
Foldable
✗
✗
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM / HSPA
GSM / HSPA
Network Speed
HSPA 3.6/0.384 Mbps
HSPA 7.2/0.384 Mbps
5G
✗
✗
4G
✗
✗
WiFi
No
Wi-Fi 802.11 b/g
Bluetooth
2.0, A2DP
2.1
NFC
✗
✗
USB
miniUSB
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✗
✓
Radio
✗
✗
Positioning
No
GPS, A-GPS
Software
Operating System
N/A
Android OS
OS Version
N/A
Android OS
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
Accelerometer
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
No
Yes

