Category Breakdown
Asus Zenfone Selfie ZD551KL
Realme 1
Performance
57.368.4
Camera
30.219.1
Display
58.958.9
Battery
24.226.4
Build
72.471.8
Connectivity
52.050.0
Audio
8.98.9
Overall
36.439.4
Summary
- The Asus Zenfone Selfie ZD551KL features a 5.5-inch IPS LCD display with a resolution of 1080 x 1920 pixels, while the Realme 1 has a slightly larger 6.0-inch IPS LCD with a resolution of 1080 x 2160 pixels, providing a more modern aspect ratio.
- In terms of performance, the Zenfone is powered by a Snapdragon 615 chipset, whereas the Realme 1 utilizes the more efficient Helio P60, offering better processing capabilities.
- Both phones have a 13 MP rear camera, but the Realme 1's camera benefits from phase detection autofocus, while the Zenfone's selfie camera is also 13 MP, making it suitable for self-portraits.
- The Realme 1 has a slightly larger battery capacity at 3410 mAh compared to the Zenfone's 3000 mAh, which may offer better longevity.
- In software, the Zenfone runs on an older Android version (5.0) with ZenUI, while the Realme 1 operates on Android 8.1 with ColorOS 6, providing a more updated user experience.
- Build quality-wise, the Zenfone is heavier at 170g and has Gorilla Glass 4, while the lighter Realme 1 (155g) features Gorilla Glass 3.
Side-by-side Specification Comparison
Asus Zenfone Selfie ZD551KL
Realme 1
General
Release Date
2015
2018
Announced
2015
2018
Description
N/A
Versions: CPH1861, CPH1859
Display
Size
5.5"
6"
Type
IPS LCD
IPS LCD
Resolution
1080 x 1920 pixels, 16:9 ratio (~403 ppi density)
1080 x 2160 pixels, 18:9 ratio (~402 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 4, oleophobic coating
Corning Gorilla Glass 3
Performance
Chipset
Qualcomm MSM8939 Snapdragon 615 (28 nm)
Mediatek MT6771 Helio P60 (12 nm)
CPU
Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU
Adreno 405
Mali-G72 MP3
Memory
16GB 2GB RAM, 32GB 3GB RAM
32GB 3GB RAM, 64GB 4GB RAM, 128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/2.0, 28mm (wide), 1/3.0"
13 MP, f/2.2, PDAF
Main Camera Features
Laser AF, Dual-LED dual-tone flash, panorama, HDR
LED flash, HDR, panorama
Front Camera
13 MP, f/2.2, 1/3.1", 1.12µm, AF
8 MP, f/2.2
Front Camera Features
Dual-LED dual-tone flash
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3000 mAh
3410 mAh
Battery Details
Li-Po 3000 mAh, removable
Li-Ion 3410 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
156.5 x 77.2 x 10.8 mm (6.16 x 3.04 x 0.43 in)
156.5 x 75.2 x 7.8 mm (6.16 x 2.96 x 0.31 in)
Weight
170 g
155 g
Materials
Glass front (Gorilla Glass 4), plastic back, plastic frame
Glass front (Gorilla Glass 3), plastic back, plastic frame
Colors
Pure White, Chic Pink, Aqua Blue
Diamond Black, Solar Red, Moonlight Silver
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Micro-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat13 600/100 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
4.0, A2DP, EDR
4.2, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow), ZenUI
Android 8.1 (Oreo), upgradable to Android 9.0 (Pie), ColorOS 6
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, gyro, proximity, compass
Accelerometer, gyro, proximity, compass

