Infinix S4 (X626B), Android 9 Pie unlocked phone, released April 2019, 6.26″ display, triple camera, 6GB RAM, 644000 mAh battery. Get the full specs and price.


Infinix S4 (Android 9 Pie smartphone)

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Infinix S4 (X626B) Quick Specs: Android 9 Pie unlocked smartphone, released April 2019, features a 6.26-inch display, Helio P22  chipset, 32 MP AI selfie camera, 13 MP + 8 MP + 2 MP triple camera, up to 6 GB RAM, up to 64 GB internal memory, and a 4000 mAh battery.


PS: You will also find the S4 being referred to as Infinix HOT S4 in many quarters. Officially, this is not an Infinix HOT device at all.

Infinix S4 (X626B) Specs and Features

Wireless Network and Software

  • 2G mobile network bands: GSM, GPRS, EDGE 850 / 900 / 1800 / 1900 MHz
  • 3G mobile network bands: UMTS, WCDMA, HSDPA 900 / 1800 / 2100 MHz
  • 4G mobile network bands: LTE 1(2100) / 3(1800) / 5(850) / 8(900) / 38(2600) / 40(2300) / 41(2500)
  • SIM Type: Nano-SIM, Dual SIM
  • Software / OS: Android 9 Pie + XOS 5.0 Cheetah.

Design, Form Factor and Appearance

  • Dimensions:  156 x 75 x 7.9 mm
  • Weight: g
  • Display: 6.2 inches, 1520 x 720 pixels, 19:9 aspect ratio, IPS TFT, FullView curved glass screen with waterdrop notch.
  • Sensors: Fingerprint (rear-mounted), Face Unlock, Accelerometer, Ambient Light sensor, Proximity sensor, Gyroscope.
  • Build: Dual 2.5D Glass Body.
  • Colours: Black. Purple. Blue.
Infinix S4 (X626B) specs and price
Infinix S4 (X626B) specs and price

Internal Hardware Specs

  • Processor Type: 64-bit, 2.0 GHz, Octa-core Cortex-A53
  • Processor Name: Mediatek Helio P22
  • Graphics Processor:  ‎IMG PowerVR GE8320 @520MHz
  • RAM: 3 GB / 6 GB
  • Internal Storage: 32 GB / 64 GB
  • External Storage: microSD, up to 128 GB (dedicated slot)

Photography and Video Recording

  • Rear Camera: 13 MP + 8 MP + 2 MP triple camera, f2.2 Aperture, quad LED flash, 1080p@30fps video recording
  • Front-facing Camera: 32 megapixels, f2.0 Aperture, AI selfie, AI Face Recognition, 1080p@30fps video capture.

Infinix S4 (X626B) unlocked smartphone with triple camera

Audio and Video Playback

  • Music Support: PCM, AAC / AAC + / eAAC + / MP3 / AMR – NB / WB / APE
  • Audio: 3.5 mm audio jack
  • Loudspeaker: Mono speakers
  • Video Support: H.264/MP4/MPEG4 player
  • FM Radio: Yes

Connectivity Features

  • Bluetooth: v5.0, A2DP
  • WiFi: Wi-Fi 802.11 b/g/n, hotspot
  • GPS: Yes, A-GPS.
  • USB: microUSB v2.0; USB-OTG

Miscellaneous Specs and Features

  • Battery Type and Capacity: Non-Removable Lithium-Polymer 4000 mAh
  • Battery Charging: 5V/2A fast charging.
  • Announced: April 2019
  • Market Availability: April 2019

Infinix S4 (X626B) Price and Availability

  • Country Availability: Available unlocked as a prepaid smartphone in Nigeria, Ghana, Uganda, Tanzania, Kenya, and other countries.
  • Price: In Nigeria, the 3 GB / 32 GB version sells for ₦49,900, while the 6 GB / 64 GB version sells for ₦64,500.

    Infinix S4 waterdrop notch
    Infinix S4 , also often called Infinix Hot S4

Frequently Asked Questions about Infinix S4

Here are quick answers to the most commonly asked questions about this phone model.


Infinix S4 Buyer’s Guide

The S4 is one of the best value-for-money phones in its price bracket. Whether you are interested in the 3GB or 6GB RAM version, you will be hard pressed to find a smartphone that offers its value at the respective prices.

Our Buyer’s Guide Verdict is recommendation that we make based on our evaluation the specs of the device. It is a general guide designed to help you understand how much value a smartphone offers for its price. It is not a stamp of quality assessment or an endorsement of the device or of the manufacturers. Be sure to ask questions and use your judgement when buying any device, as MobilityArena may not be held responsible for your buying decisions.

Infinix S4 Review Rating

We are yet to review the Infinix Hot S4 and so do not have a review rating for it yet. This page will be updated with our review rating, as well as the link to the review page, as soon as we have reviewed one.

Infinix S4 News & Updates


October 2019: Infinix Mobility released a system update for the S4 to add new features like digital well-being and gaming mode to the phone. Digital WellBeing is an Android 9 feature by Google to help you monitor your digital lifestyle. The new gaming mode provides an enhanced gaming environment on the phone. Source.

Disclaimer: While we take the pains to ensure accuracy, we can not guarantee that the specs and  information on this page about the Infinix S4 (X626B) are 100% correct. If you think that any information for the current phone is wrong or missing, please contact us.

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One comment

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  2. Infinix hot 4s, wow this is the best phone ever. More customized, fast browsing having a RAM of 2GB and the ROM of 32GB.
    Clear photos, battery saving.
    Good indeed. 😘😘😘😘

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