Infinix Smart 4 is an Android 9 smartphone with a 6.6″ display, dual AI camera, up to 2GB RAM, up to 32GB storage, and a 4000mAh battery. It was announced in November 2019.

Infinix Smart 4

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Infinix Smart 4 has a 6.6″ display, up to 2GB RAM, up to 32GB storage, and a 4000mAh battery. It is a 4G LTE Android 9 Pie smartphone and has a 5MP selfie camera. At the back is an 8MP dual camera, which the manufacturer says is an dual AI camera. It is the successor to the Infinix Smart 3.

The Smart 4 has an expandable memory slot that supports microSD cards of up to 256GB. The popular waterdrop notch is present here on the display and there is support for Face Unlock. If you prefer using your fingerprint, and most people do, a fingerprint scanner is present at the back of the phone.

Infinix Smart 4 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 850 / 900 / 2100 MHz
  • 4G mobile network bands: LTE1(2100) / 3(1800) / 5(850) / 8(900) / 38(2600) / 40(2300) / 41(2500)
  • 5G mobile network bands: No.
  • SIM Type: Nano-SIM, Dual SIM
  • Software / OS: Android 9 Pie + XOS 5.5

Design, Form Factor, Appearance

  • Dimensions: 167 x 76 x 8.3 mm
  • Weight:
  • Display: 6.6 inches, 720 x 1600 pixels HD+, IPS TFT screen with a waterdrop notch.
  • Colours: .
  • Physical Build: Plastic.Infinix Smart 4

Internal Hardware Specs

  • Processor Type: 2.0 GHz Quad-core, Cortex-A7
  • Processor Name: Mediatek Helio A22 (12nm)
  • Graphics Processor: IMG PowerVR GE6320
  • RAM: 1GB / 2GB
  • Internal Storage: 16GB / 32GB
  • External Storage: microSD, up to 256 GB (dedicated slot)

Photography, Video Recording

  • Rear Camera: Fixed focus 8MP + QVGA dual lens camera, dual LED flash, 1080p video recording.
  • Front-facing Camera: Fixed focus 5MP, video capture.

Infinix Smart 4 front and rear cameras

Audio, Video Playback

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


  • Digital Compass: Yes.
  • Accelerometer: No.
  • Proximity Sensor: Yes.
  • Ambient Light Sensor: Yes.
  • Barometer: No.
  • Pedometer: No.
  • Heart Rate Monitor: No.
  • Gyroscope (G-Sensor): Yes.
  • Fingerprint Scanner: Yes; rear-mounted.
  • Face Unlock: Yes.
  • Iris Scanner: No.
  • Motion Sensing / Gesture Control: No.
  • Voice Control: No.
  • Intelligent Digital Assistant: Google Assistant.
  • Infra-red Sensor: No.

Connectivity Options

  • Bluetooth: v4.2, A2DP
  • WiFi: Wi-Fi 802.11 a/b/g/n, hotspot
  • GPS: Yes, A-GPS.
  • USB: microUSB v2.0.
  • NFC: No.

Miscellaneous Specs and Features

  • Battery Type and Capacity: Non-Removable Lithium-Ion 4000mAh.
  • Battery Charging: 5V/1.2A Standard Charging
  • Reverse Charging: No.
  • Announced: November 2019.
  • Release Date: November 2019

Infinix Smart 4 Price and Availability

  • Country Availability: Nigeria. Kenya. Ghana. Uganda. Tanzania, and other countries where Infinix has operations.
  • Price: Infinix Smart 4 is already available in Pakistan for Rs. 15,500. The 1GB RAM /16GB ROM variant sells for between ₦30,000 and ₦35,000 in Nigeria at stores like Slot, Jumia, Konga, etc.

Infinix Smart 4 Competitors and Alternatives

With that same amount (₦30,000), you can also pick up Infinix Smart 2HD, with 6″ display, 16GB storage, 1GB RAM, and 8MP camera. It runs Android Oreo though.

You can also pick up Gionee M7 Lite for the same price. This time, you get a smaller 5.45″ display, more RAM (2GB), 16GB storage, 4000mAh battery, fingerprint scanner, and 8MP camera. The software is Android 9 Pie.

For about ₦3,000 less, you can pick up Huawei Y5 Lite and embrace its 5.45″ display, 16GB storage, 1GB RAM, 3020mAh battery, and runs Android 8 Oreo.

With an extra ₦1,000 or ₦2,000, Nokia 3.2 offers a 6.26″ display, 16GB storage, 2GB RAM, 4000mA battery, 13MP camera, and Android 9 Pie. Our Nokia 3.2 review should interest you.

Xiaomi Redmi 7A has a 5.45″ display, 16B storage, 2GB RAM, 4000mAh battery, 13MP rear camera, and runs Android 9 Pie. There is no fingerprint scanner in this model though.

If you want a Samsung, you will have to budget an extra ₦4,000 or ₦5,000 naira to get the Galaxy A01. That gives you a 5.7″ display, 16GB storage, 2GB RAM, 3000mAh battery, 13MP camera, fingerprint scanner, and Android 10, making it the most up-to-date Infinix Smart 4 alternative in terms of software.

Perhaps the best value for money in this price bracket is from itel Mobile. The S15 Pro packs a 6.1″ display, rear fingerprint scanner, 32GB storage, 2GB RAM, 3000mAh battery, and 8MP camera with Android 9 Pie. See our itel S15 Pro review for how this phone performs.

Infinix Smart 4

Questions and Answers about Infinix Smart 4

Is Infinix Smart 4 a 4G phone?

Yes; the Smart4 is a 4G LTE phone.

Does Infinix Smart 4 have a fingerprint scanner?

Yes; Infinix Smart 4 has a fingerprint reader.

Does Infinix Smart 4 have Gorilla Glass?

No; the Smart 4 does not have Gorilla Glass protection on its screen.

Does Infinix Smart 4 have quick charging?

No; the Smart 4 does not have quick charging technology.

What is the price of Infinix Smart 4? How much does it sell in Nigeria?

Infinix Smart 4 16GB costs between ₦30,000 and ₦35,000 in Nigeria, depending on the store.

MobilityArena Buyer’s Guide Verdict

Not available.

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 Smart 4 Review Rating

We do not have a review of the Smart 4 available yet.

Disclaimer: While we take the pains to ensure accuracy, we can not guarantee that the specs and information on this page about Infinix Smart 4 are 100% correct. If you think that any information for the current phone is wrong or missing, please contact us.

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