Is the Infinix Note 4 truly an upgrade?

August 8, 2017
5 min read

Less than a year after the launch of the Note 3, Infinix Mobility has introduced the Infinix Note 4 as a better and more enhanced alternative in its mid-range Note smartphones.

As was evident in the unboxing, there are lots of visible improvements in the Infinix Note 4, but do these changes translate to other aspects of the phone? Let me show you what I found.


The Infinix Note 4 went one notch higher in the design department as it did not leave anything to chance in turnng a pretty smartphone. Apart from size, the first noticeable feature of the Infinix Note 4 is its distinct sleek body that looks very much like the Samsung S7 and S8.

According to Infinix, the design of the Note 4 is inspired by the curve design of automobile manufacturer BMW and this is visibly understandable.


Infinix Note 4 Design

Another new inclusion to the design of the Infinix Note 4 is the physical home button that doubles as its fingerprint sensor. One one hand, this strange new add on feels more like a design flaw than an improvement.

Infinix Note 4 33Infinix phones usually have a fingerprint sensors behind which I have mentioned is brilliant as it aligns with the natural finger placement of smartphone users, but this one is different.  At a time when smartphone manufacturers are slowly abandoning physical home buttons in favour of touch technology to create more screen space, I wonder if a physical home button on the Infinix Note 4 is an upgrade.


Screen on the Infinix Note 4 is a 5.7 inches power efficient full high definition display with true colours. But screen responsiveness is not on the high side.

Picture showing a 2% power consumption rate on the Infinix Note 4 screen after 3 hours standby time
The Infinix Note 4 screen has low power consumption

Taking off the screen protector definitely did help, but the fragile nature of the screen doesn't make this a viable option.


Cameras on the Infinix smartphones I have used do not perform well under extreme lighting conditions and the Infinix Note 4 is not an exception.

The 8 MP front facing camera took slightly overexposed shots as images came out overly lighted and totally devoid of any shadows.

Selfies taken with the front facing 8MP camera on the Infinix Note 4
Selfies taken with the front facing 8MP camera on the Infinix Note 4

The back camera on the other hand is a near beauty in all its 13MP lushness. There were still some hints of too much light seeping into the camera lenses, but this is slightly controlled.

Waterleaf shot with the 13MP primary camera on the Infinix Note 4
Waterleaf shot with the 13MP primary camera on the Infinix Note 4

Even in motion, the camera still manages to hold its own.

Sunset shot aboard a motorcycle with the 13MP primary camera on the Infinix Note 4
Sunset shot aboard a motorcycle with the 13MP primary camera on the Infinix Note 4

Software, Storage and Performance

Android Nougat 7.0 on the Infinix Note 4 is the biggest non-visible upgrade from the Note 3. The improved version of the Android operating system gives a whole new look to the user interface.

There is 16GB expandable internal memory in the Note 4 which is nearly full at the time of this review, I will advise you buy a memory card to complement it. The 2GB RAM on the other hand was strangely sufficient for system errands as there were no device lags or freezes.


The 4,300 mAh battery on the Infinix Note 4 is 200 mAh less than its predecessor, even though there was talks of better optimization that made it better than the Note 3, I did not see any. But the battery is still way above average, excellent in fact.

Infinix Note 4 25

First charge

The Infinix Note 4 went from 0% to a 100% full charge in 2 hours and 14 minutes (8:01 PM -- 10:15 PM)

First use

On a full charge, I played YouTube videos with screen brightness at maximum on a WiFi connection from 12 PM and by 3:56 PM, battery was at 54%. From 4:06 PM, I watched movies on a Bluetooth speaker and the battery died by 8 PM.

Second charge

A subsequent power boost went from 1% to 99% in 2 hours and 2 minutes (10 AM -- 12:02 PM) before a power outage. This was 12 minutes faster than the first charge.

Second use

After charging, I played Sonic Dash over the internet and music intermittently over Bluetooth speakers. The battery lasted for 5 hours and 32 minutes  (12:30 PM to 6:02 PM).

5-minute charge = 250 minutes talk time

Infinix Note 4 27

The Infinix Note 3 promised 200 minutes talk time on a 5-minute charge, but that claim was falsified in the review. The battery on the Note 4 is smaller than its predecessor, but Infinix says it is optimized to perform better than the Note 3, it didn't.

The 250 minutes talk time promised for a 5-minute charge was 87 minutes the first time and 91 minutes on the second try.


It retails for between  ₦53,000 -- ₦55,500 in online and physical stores.


I had major expectations for the Infinix Note 4 and most of them fell through. But even though it has some flaws, the Note 4 is unarguably a well priced smartphone with impressive specs and battery life. I did use it as an only phone for the period of the review and it served well.

tech. media. startups. africa. vc | Twitter: @victor_ekwealor
tech. media. startups. africa. vc | Twitter: @victor_ekwealor
Subscribe To Techpoint Digest
This is A daily 5-minute roundup of happenings in African and global tech, sent directly to your email inbox, between 5 a.m. and 7 a.m (WAT) every week day! 
Digest Subscription

Give it a try, you can unsubscribe anytime. Privacy Policy.

tech. media. startups. africa. vc | Twitter: @victor_ekwealor

Other Stories

43b, Emina Cres, Allen, Ikeja.

 Techpremier Media Limited. All rights reserved