Asus Zenfone 4 ZE554KL smartphone specs & features are: Android Nougat operating sytem, octa-core 2.2GHz Qualcomm Snapdragon 630 processor, 6GB RAM and 64GB internal memory, 8MP front facing cameras and dual 12MP + 8MP main camera, Wi-Fi, Bluetooth and memory card slot which can be expanded to maximum 256GB with SIM slot 2. It has a battery capacity of 3300mAh, which can last you a full day.

• - 1.4 GHz Quad/Octa-Core Snapdragon 430 Processor - 3GB RAM With 32 ROM - 5.5 Inch FHD IPS Display - Dual SIM - Dual 13MP Rear Camera With LED Flash - 8MP Front Camera With LED Flash - Fingerprint Sensor - MicroSD/VoLTE/WiFi - 5000mAh Battery

Asus Zenfone 4 Selfie (ZD553KL) is a smartphone powered by Zen UI 4.0 based on Android 7.0 Nougat and 16MP Camera with dual tone LED flash. - 1.4GHz Octa-Core Snapdragon 430 Processor - 4GB RAM With 64GB ROM - 5.5 Inch HD IPS Display - Dual SIM - 16MP Rear Camera With Dual Tone LED Flash - Dual 20MP + 8MP Front Camera With LED Flash - Fingerprint Sensor - MicroSD/VoLTE/NFC/WiFi - 3000mAh Battery.

The ZenFone Selfie Pro opts for a 24 MP selfie shooter (though the sensor is technically a 12 MP one), accompanied with secondary 8-megapixels wide-angle sensor. Apart from that, the rest of the specs are decidedly mid-range: Snapdragon 625 with 4 GB of RAM and a 3,000 mAh battery.

6.2 inches, full HD+ 1080 OS: Android SIM: Nano SIM,Dual SIM, Dual Standby Storage: 64GB External Storage: up to 2TB Display Size: 6.2 inches Speed: HSPA, LTE-A Main Camera: 12 MP + unknown MP Dimensions: 153 x 7.85 x 75.65 mm

ASUS ZenFone 5Q (ZC600KL) 6" IPS LCD display Full HD+ resolution (2160x1080) Dual SIM Android 7.1 Nougat Snapdragon 630 quad-core processor 4GB RAM 64GB storage (expandable up to 2TB via dedicated memory card slot) Dual rear cameras (16MP & 8MP) Dual front cameras (20MP & 8MP) Fingeprint scanner 3300mAh battery

Asus Zenfone 5Z ZS620KL - is a Hybrid Dual SIM smartphone with 6.2" FHD+ display and capacitive touchscreen, dual 12MP + 8MP rear cameras and 8MP front camera. Under the hood, it holds Qualcomm SDM845 Snapdragon 845 2.7GHz Octa-core processor and runs Android Oreo OS with 6GB RAM and 128GB internal memory. It has a battery capacity of 3300mAh and features Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, NFC, GPS, Bluetooth, WiFi, LTE.

At just 1.2 mm thick, the ZenFone Go Bumper Case provides adequate protection without compromising the smartphone’s lightweight design. Its tactile thermoplastic polyurethane surface feels soft to the touch. Snap-on design protects the rear of your ZenFoneGo, while giving you full access its various ports.

OS : Android 8.0 Oreo (Go edition) Processor :Quad-core 1.4 GHz Cortex-A53 GPU :Adreno 308 Display :5.5” Full View 18:9 Display in 5” Body Camera Rear :13 MP (f/2.0), PDAF, LED flash Camera Front :5 MP (f/2.4), LED flash Internal Storage : 16GB ROM Memory : 2GB RAM Non-removable Li-Ion 3000 mAh battery microUSB 2.0 OTG Accelerometer, gyro, proximity, compass up to 512 GB (dedicated slot) Dual Sim Nano 4G Network , LTE Wifi

Qualcomm Snapdragon 425/Qualcomm Snapdragon 430 processor 3GB RAM 5.5-inch 18:9 full HD+ IPS Display 32GB Internal Storage 13-Megapixel primary rear camera with LED Flash, PDAF, f/2.0 aperture 8-Megapixel secondary rear camera with 120-degree wide-angle lens 13-megapixel/8-Megapixel front camera with 85° field of view, f/2.2 aperture, LED flash 4G, LTE Dual SIM WiFi, Bluetooth GPS, A-GPS, GLONASS, Fingerprint Scanner 4000mAh battery Android 8.0 Oreo (ZenUI 5.0)

Display :6.3 inches OS :Android 8.1 (Oreo) Processor :Octa-core (4x1.8 GHz Kryo 250 Gold & 4x1.8 GHz Kryo 250 Silver) GPU :Adreno 506 Internal Storage : 32GB ROM Memory : 3GB RAM Camera Rear :13 MP, f/1.8, 1.12µm, PDAF2 MP, depth sensor Camera Front : 8 MP, f/2.0, 1.12µm Non-removable Li-Ion 4000 mAh battery