Asus Zenfone 4 Pro ZS551KL smartphone was announced in 2017, August by ASUS and was launched in October, 2017. The Asus Zenfone 4 Pro ZS551KL phone has 156.9 x 75.6 x 7.6 mm (6.18 x 2.98 x 0.30 in) (height x width x thickness) dimensions with weight 175 g (6.17 oz) grams. It comes in Moonlight white and Pure Black colors.
The operating system which runs on the phone is Android 7.1.1 (Nougat) and the display size of the phone is 5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio) with resolution of 1080 x 1920 pixels, 16:9 ratio (~401 ppi density) pixels. The network technology of the phone is GSM / HSPA / LTE with 2G bands GSM 850 / 900 / 1800 / 1900 – SIM 1 & SIM 2, 3G bands HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 and 4G bands LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 19(800), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) – Global, Taiwan.
The phone has rear camera with specs, Dual: 12 MP (f/1.7, 25mm, 1/2.55″, 1.4 , 4-axis OIS, Dual Pixel PDAF) + 16 MP (50mm, 1/3.1″, 1 ), phase detection & laser autofocus, 2x optical zoom, LED flash and the front camera with specs , 8 MP (f/1.9, 22mm, 1.4 ), phase detection autofocus, 1080p, HDR. The camera is featured with Geo-tagging, touch focus, face detection, HDR, panorama. The phone is powered with a battery of 3600 mAh capacity, Octa-core (4×2.45 GHz Kryo & 4×1.9 GHz Kryo) CPU and Adreno 540 GPU. As for as the RAM and the ROM of the Asus Zenfone 4 Pro ZS551KL phone are concerned, it comes with 64/128 GB, 6 GB RAM. The list of sensors, price and many other specifications are given below.