Category Breakdown
Bird D615
ZTE Sage
Performance
25.015.9
Camera
39.60.0
Display
19.56.8
Battery
4.21.6
Build
0.20.2
Connectivity
8.58.5
Audio
8.98.9
Overall
11.74.4
Summary
- The Bird D615 features a 1.8-inch TFT display with a resolution of 128 x 160 pixels, while the ZTE Sage has a TFT resistive touchscreen but lacks specific resolution details.
- In terms of performance, the D615 has 60MB of storage and 60GB of RAM, significantly outperforming the Sage's 10MB storage and 10GB RAM.
- Both devices have a 1.3 MP rear camera, but the D615 supports video recording, whereas the Sage does not.
- The D615 is powered by a 650mAh battery, while the Sage has no specified battery capacity.
- Build quality shows the D615 is slightly larger and heavier than the Sage, which is more compact.
- Both run basic software experiences without advanced features like stereo speakers or headphone jacks.
Side-by-side Specification Comparison
Bird D615
ZTE Sage
General
Release Date
2007
2010
Announced
2007
2010
Description
N/A
Also known as Orange Lisbon
Display
Size
1.8"
N/A
Type
TFT, 65K colors
TFT resistive touchscreen, 65K colors
Resolution
128 x 160 pixels (~114 ppi density)
N/A
PPI
128
0
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
N/A
CPU
N/A
N/A
GPU
N/A
N/A
Memory
60MB
10MB
Expandable Storage
✗
✗
Card Slot
microSD (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
1.3 MP
1.3 MP
Main Camera Features
N/A
N/A
Front Camera
N/A
N/A
Front Camera Features
N/A
N/A
Video Recording
Yes
No
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
650 mAh
N/A
Battery Details
Removable Li-Ion 650 mAh battery
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
105 x 45.6 x 12.2 mm (4.13 x 1.80 x 0.48 in)
93 x 49 x 13.5 mm (3.66 x 1.93 x 0.53 in)
Weight
82 g
80 g
Materials
N/A
N/A
Colors
Soft-touch Grey, Shining Blue
Black
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM
GSM
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
Yes
Yes
NFC
✗
✗
USB
Proprietary
Proprietary
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
No
No
Software & Security
Operating System
N/A
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A

