Infinix has been selling budget smartphones for a long time. Many of the Infinix models we’ve tested in the past – including the Note 5, Hot S3X, and Note 5 Stylus – have been successful in our review process. The Infinix S4 is the company’s newest offering, and it boasts of triple rear camera setup and a large battery. Is it better than its competitors? We review it to find out.
INFINIX S4 TOP SPECS
- Release Date: 2019, April
- Dimensions: 156 x 75 x 7.9 mm
- Weight: 154 g
- Screen: 6.2″, IPS LCD
- Main Camera: Triple, 13 MP
- Selfi Camera: Single, 32 MP
- Memory: 64 GB, 4 GB RAM 32 GB, 3 GB RAM
- CPU: Octa-core 2.0 GHz Cortex-A53
- Battery: 4000 mAh
- Sensors: Fingerprint (rear-mounted), accelerometer, proximity, compass
Infinix S4 design
At first glance, it’s a little hard to believe that the Infinix S4 is a mid-range smartphone. It is well designed and the shiny background is the highlight of it all. The Infinix S4 is available in three color variants, Nebula Blue, Space Gray, and Twilight Purple. We have a Nebula Blue review unit, and it was lovely to see.
While the shiny back gives an impression of glass, it is made of plastic. However, the shiny back is a fingerprint magnet and we had to keep cleaning the phone from time to time. Infinix ships a clear case in the box, which will help keep stains away to some degree.
The Infinix S4 has a large display with a waterdrop notch, and the bezels aren’t too thick. Our review unit had a screen protector pre-applied, and there was an extra one in the box. The S4’s earpiece is fairly slim and fits between the frame and the screen. We found the phone to be comfortable to hold, and not very heavy.
Infinix has positioned the power and volume buttons to the right, but we have found that the volume buttons are slightly too high for our liking. However, all of these buttons have a good click response. This SIM tray is on the left.
Rotate the phone, and the triple camera setup is sure to catch your eye. Such a setup is uncommon at this price point and we were surprised to see it on the Infinix S4. The camera module protrudes slightly, causing the phone to sway when placed on flat surfaces. There is a four LED flash just below the camera module. The fingerprint scanner is located next to the camera and is easily accessible. The scanner has a matte texture that breaks the monotony of the shiny back.
At the bottom, you’ll find a speaker grille, a 3.5mm headphone jack, and a Micro-USB port, while the top of the device is completely blank.
Specifications and Software
The Infinix S4 has a 6.21-inch HD + display (720 × 1520 pixels) with an aspect ratio of 19.5: 9, and the company claims the screen-to-body ratio is 89%. Infinix also says that the S4 brings out 500 nits of brightness, and we found the display to be readable when outdoors. The screen was sharp and I was happy with the result, however, we couldn’t find a way to adjust the color temperature. There is an eye care feature that filters blue light to reduce eye strain.
Infinix has chosen the MediaTek Helio P22 SoC to power the S4. This processor is slowly becoming uncommon at this price point, and we’ve seen other smartphones like the Realme C2 ( Oppo A1k (The Infinix S4 is one of the few phones to feature a triple camera setup.
Infinix ships the S4 with XOS 5.0 running on top of Android 9 Pie. This is the latest version of Android, and our unit was running the April security patch, which is acceptable. There are quite a few UI customizations, and it doesn’t look like Android as standard.
It has support for themes and you can download more through the Themes application that comes pre-installed. We also find other pre-installed applications such as PHX Browser, Google Apps, and Danger Dash. The PHX browser sent spam notifications from time to time, so we uninstalled it.
There are some useful additions to the feature in the Infinix S4 that help the user experience. The phone has an AIBox feature that allows clubs to receive notifications and displays alert only from the applications for which you want to be notified. It also has a smart panel that can be accessed from anywhere and that houses a couple of shortcuts.
Another feature called Intelligent Voice Broadcast will read the time and your schedule for the day once the morning alarm is off. You can also read aloud WhatsApp and Facebook updates. We tried this feature and it worked fine, but we couldn’t change the voice or language. Gestures are also available to help you navigate the user interface by sliding across the bottom of the screen.
Performance, battery life, and Infinix S4 cameras
The Infinix S4 offers sufficient performance with its MediaTek Helio P22 SoC. We did not notice the delay while scrolling through the menus or when switching between various applications. 3GB of RAM helps the S4 retain applications in memory, aiding in multitasking. Like the Realme C2, the S4 also took a little longer than usual to load large apps.
We ran our benchmark apps that revealed how the Helio P22 works on the Infinix S4. In AnTuTu, the S4 achieved 74,474 points, a figure lower than that of Realme C2. This phone also scored 762 and 3,646 points in Geekbench 4 single- and multi-core tests, respectively. Earned 11,399 in 3DMark Ice Storm Unlimited and 8,288 in Ice Storm Extreme. The Infinix S4 also scored 11fps on GFXBench Manhattan 3.1 and 27fps on T-Rex.
PUBG Mobile ran in the low default setting with the graphics quality set to Smooth and the frame rate set to Medium. We were running late while playing the game, but it wasn’t as bad as it was on Realme C2. The phone recorded a 5 percent battery drop after 20 minutes of gaming and warmed to the touch around the top rear.
We found that the rear-mounted fingerprint scanner and facial recognition functions are quick to unlock the smartphone.
The Infinix S4 manages to offer good battery life thanks to its 4000mAh battery. With our use, which consisted of WhatsApp, using Google Maps for navigation, running our benchmarks, and taking some camera samples, the smartphone lasted approximately a day and a half. In our HD video loop test, the Infinix S4 managed to score 17 hours and 35 minutes. When the battery runs out, the supplied charger is capable of charging 31 percent in 30 minutes and takes around 2 hours to fully recharge.
The triple camera setup on the Infinix S4 is the highlight of this product, as three cameras are not common at this price point. There is a primary 13-megapixel sensor with an f / 1.8 aperture, an 8-megapixel wide-angle sensor with a 120-degree field of view, and the third camera is a 2-megapixel depth sensor. There is also a four-LED flash just below the camera module. On the front, this phone has a 32-megapixel self-timer with an f / 2.0 aperture and a screen flash
The camera app has built-in AI functions to help the smartphone detect where it’s pointing. EA is turned on by default on S4. There are quick switches available for HDR and flash, as well as a button to switch to the wide-angle sensor. The Camera app also has other modes like Beauty, Bokeh, Video, and AR Shot.
The photos taken with the Infinix S4 in daylight were good. The phone managed to lock focus quickly and get the correct exposure. He has also gotten a fair amount of detail when shooting outdoors. The macros were sharp and the Infinix S4 managed to surprise us with its photographic quality. The phone also achieved a good separation between the subject and the background.
The Infinix S4 allows you to select the level of blur when taking vertical pictures, but the quality of edge detection is below average. Low light is where the camera takes a beating. The shots were not sharp and had a large grain on the output. The wide-angle lens allows you to shoot wider landscapes, but we’ve noticed barrel distortion at the output.
The selections were good and the presence of HDR helps when shooting outdoors. There is also face detection, which helps to get the exposure just before taking a photo. Video recording is maximized to 1080p for cameras and there is no stabilization, resulting in unstable output.
The Infinix S4 is one of the few smartphones that features a triple camera setup. Its wide-angle sensor is very useful for taking pictures of landscapes, and the main sensor manages good photos in daylight. Unfortunately, the performance of the camera is affected by low light. Although the MediaTek Helio P22 SoC is not the most powerful processor in this price segment, it does offer a user experience.
The Infinix S4 has a slight surcharge on the Realme C2 but it has a fingerprint sensor and has slightly better cameras. If that’s good enough for you, go to the Infinix S4, but if you want more value for money, the Redmi 7 is a solid alternative.
Get real time update about this post categories directly on your device, subscribe now.