The ZenFone 3S Max (ZC521TL) offers many good features like impressive rear camera quality with good selfie snapper, impressive expandable memory, fingerprint sensor and great battery life. However, the smartphone has a hybrid second SIM slot which can be termed as a drawback. Hence, go for it if you can overlook this flaw.
Display and Design
The Asus Zenfone 3s Max ZC521TL flaunts a 5.2-inch (13.21 cm) IPS LCD HD display with a resolution of 720 x 1,280 pixels. This device is wrapped by full metallic unibody casing and weighs around 169.5 grams. This phone is available in two colour variant, black and gold.
OS and Configuration
The Asus Zenfone 3s Max ZC521TL runs on Android v7.0 (Nougat) OS and is based on ZenUI 3.0. It is powered by octa-core, 1.5 GHz, Cortex A53 which seated on MediaTek MT 6750 chipset. It allows its users to run multiple apps smoothly, watch video, send emails simultaneously. It has 3GB RAM and Mali-T860 MP2 graphics to further assist the processor.
Camera and Storage
The Asus Zenfone 3s Max ZC521TL has 13MP primary camera with aperture of 2.0f for impressive photography. A host of features of this camera are dual-color LED flash, exposure compensation, ISO control, continuous Shooting, high dynamic range mode (HDR), digital zoom, autofocus, face detection and touch to focus which further enhances the quality of the images captured. It is accompanied by an 8MP front camera which is good for selfie lovers.
The internal memory of this device is 32GB which is further expanded upto 2TB with the help of a microSD card on its hybrid SIM slot.
Battery and Connectivity
The dual-SIM ZenFone 3S Max (ZC521TL) is fueled by a 5,000mAh li-polymer non-removable battery which is good enough to offer great backup. It also supports reverse charging capability which means it can act as a power bank for other smartphones as well.
On connectivity side, it has wide range of connectivity features like Wi-Fi 802.11, b/g/n, mobile hotspot, Bluetooth v4.0, A-GPS, microUSB 2.0 and 4G connectivity. At the front side of the smartphone a fingerprint sensor is available to assure good security.