Which one is better, the Oppo A31 (2020) 128GB or BLU J4 (2019) 32GB? We did a deep-dive comparison categorised by purpose of use!
Created date: 2020-02-27 13:26:12, Updated date: 2022-08-03 21:22:34
How are the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB" different? We have tested and evaluated their differences. We also explain which one may be best for you.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |||
General rating: | 47/100 (The 3913th of all smartphones) | 63.2/100 (The 3634th of all smartphones) | ||
Grip | 59/100 | 53/100 | ||
Screen quality | 63/100 | 68/100 | ||
Performance | 28/100 | 89/100 | ||
Storage size | 78/100 | 90/100 | ||
Battery | 80/100 | 100/100 | ||
Rear-camera resolution | 50/100 | 70/100 | ||
Front-camera resolution | 80/100 | 80/100 | ||
Contents
- 1.What is the difference between the "BLU J4 (2019) 32GB" and the "Oppo A31 (2020) 128GB"? See a detailed comparison of ease of use and performance
- 1-1.Comparison of weight and size of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
- 1-2.Compare the display of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
- 1-3.Compare the camera performances of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
- 1-4.Comparison of the processing capabilities of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
- 1-5.Comparison of the battery life of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
- 1-6.Compare the storage capacity of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
- 2.Which to buy, the "BLU J4 (2019) 32GB" or "Oppo A31 (2020) 128GB"
- 3.What are the spec differences between the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB" ?
What is the difference between the "BLU J4 (2019) 32GB" and the "Oppo A31 (2020) 128GB"? See a detailed comparison of ease of use and performance
Comparison of weight and size of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
The design of BLU J4 (2019) 32GB
The "BLU J4 (2019) 32GB" is 151.0mm long, 72.3mm wide, and 10.0mm thick. It weighs 158.0g.
The design of Oppo A31 (2020) 128GB
The "Oppo A31 (2020) 128GB" is 163.9mm long, 75.5mm wide, and 8.3mm thick. It weighs 180.0g.
Which is the better design to use?
In comparison, the size difference is 12.9mm in length, 3.2mm in width, and 1.6mm in thickness. Both the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB" are equally easy to use with one hand. Hiragana flick input is basically just as easy to use with "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB". Both the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB" are basically equally portable and easy to handle.
The difference in weight is 22g. The "BLU J4 (2019) 32GB" is much lighter, putting less burden on the hand.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |
---|---|---|
Ease of holding it in one hand | 66/100 | 63/100 |
How much it does not feel heavy to hold in one hand | 47/100 | 32/100 |
Ease of carrying around | 60/100 | 59/100 |
Compare the display of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
Display of the BLU J4 (2019) 32GB
The "BLU J4 (2019) 32GB" uses a IPS LCD liquid crystal. The resolution is 720 x 1440, and the pixel density is 292ppi. The "BLU J4 (2019) 32GB" has a 5.5inch screen size.
Display of the Oppo A31 (2020) 128GB
The "Oppo A31 (2020) 128GB" uses a IPS LCD liquid crystal. The resolution is 720 x 1600, and the pixel density is 269ppi. The "Oppo A31 (2020) 128GB" has a 6.5inch screen size.
Which has a better screen?
This makes a 1inch difference in the display sizes. Lining up the displays side by side makes the difference in size clearly visible. "Oppo A31 (2020) 128GB" has a bigger display that is easier to use, especially for looking things up on the Internet and using social media. Both the "BLU J4 (2019) 32GB" and the "Oppo A31 (2020) 128GB" can be easily used for this kind of purpose. In the gaming end, the "Oppo A31 (2020) 128GB" offers a more suitable screen size. Both the "BLU J4 (2019) 32GB" and the "Oppo A31 (2020) 128GB" can be easily used for this kind of purpose.
The display of "BLU J4 (2019) 32GB" looks sleeker than that of "Oppo A31 (2020) 128GB", and is more suited for everyday use such looking things up on the Internet and playing mobile games. When using the smartphone as a VR, the screen is generally held much closer to the face than when using the smartphone for other purposes, and so the clarity of the screen becomes a rather important factor. When you compare how easy it is to see the VR on the two phones, it is pretty much the same. Neither the "BLU J4 (2019) 32GB" nor the "Oppo A31 (2020) 128GB" have the necessary specs for this kind of purpose, so the experience will be unsatisfactory.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |
---|---|---|
How suited is the screen for usual usage? | 72/100 | 80/100 |
How suited is the screen to play games on? | 73/100 | 84/100 |
Compare the camera performances of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
Camera performance of BLU J4 (2019) 32GB
The main camera of the "BLU J4 (2019) 32GB" has 8.0MP. The front camera has 8.0MP.
Camera performance of Oppo A31 (2020) 128GB
The main camera of the "Oppo A31 (2020) 128GB" has 12.0MP. The front camera has 8.0MP.
Which camera performance is better?
The back cameras thus have a 4MP difference in comparison. The "Oppo A31 (2020) 128GB" also functions better for long-shot photos for the perfect group photo or a picturesque shot of a beautiful location. The "Oppo A31 (2020) 128GB"'s rear camera triumphs as well, boasting a better megapixel count for close-up Instagram-worthy pictures of meals and desserts. The "Oppo A31 (2020) 128GB" has the necessary specs for this kind of purpose.
When shooting objects or people with the front phone camera from a short distance, such as taking a selfie with a selfie-stick, there is very little difference between the pixel counts of the two phones, even when it comes to the scenery in the background of such photographs. There is not much difference between the pixel counts of "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB" when it comes to taking close-up photographs such as selfies or profile pics with the front phone camera.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |
---|---|---|
Is is suited to taking far away objects with the rear camera? | 50/100 | 70/100 |
Is it suited for taking close objects with the built-in camera? | 80/100 | 80/100 |
Comparison of the processing capabilities of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
The processing capability of the BLU J4 (2019) 32GB
The CPU performance is 1.3GHz×4(4.0-cores). The memory capacity is 1.0GB.
The processing capability of the Oppo A31 (2020) 128GB
Performance is defined by the chipset, and the "Oppo A31 (2020) 128GB" uses the Mediatek MT6765V/CB Helio P35 SoC. The CPU performance is 2.3GHz+1.8GHz×8(8.0-cores). The memory capacity is 4.0GB.
Which has the better processing capability?
As compared to the "BLU J4 (2019) 32GB", the "Oppo A31 (2020) 128GB" boasts boasts a better CPU and specs. This is a 3GB difference in memory capacity. The "Oppo A31 (2020) 128GB" has more memory storage, making the "Oppo A31 (2020) 128GB" work better for multitasking or running 3D games.
For those who only use their phone's basic features like emailing, instant messaging, or social media, the "Oppo A31 (2020) 128GB" is the better choice to buy over the "BLU J4 (2019) 32GB". Users looking for a phone to meet their web browsing and video playing needs, with the occasional game every now and then, should definitely go for the "Oppo A31 (2020) 128GB". The "Oppo A31 (2020) 128GB" has the necessary specs for this kind of purpose.
The "Oppo A31 (2020) 128GB" runs 2D games and simple 3D games much more smoothly, making it the better choice in this area. Complex, full-fledged 3D games definitely run better on the "Oppo A31 (2020) 128GB" than the "BLU J4 (2019) 32GB". The "Oppo A31 (2020) 128GB" has the necessary specs for this kind of purpose, but the "BLU J4 (2019) 32GB" shows only an unsatisfactory performance.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |
---|---|---|
Review on the CPU capbility and memory capacity when using Social Networks or the Internet | 47/100 | 91/100 |
Review on the CPU speed and the memory capacity while playing 3D games | 12/100 | 85/100 |
Comparison of the battery life of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
Battery performance of BLU J4 (2019) 32GB
The "BLU J4 (2019) 32GB" has a battery capacity of 2200.0mAh.
Battery performance of Oppo A31 (2020) 128GB
The "Oppo A31 (2020) 128GB" has a battery capacity of 4230.0mAh.
Which battery perfomances is better?
This makes a difference in battery capacity of 2030mAh, but it is not enough to only compare the capacity. With a high-performance CPU, the battery drains faster, and a larger screen also uses more battery.
The "Oppo A31 (2020) 128GB" is also a great choice for those who only use their phone for occasional phone calls or for checking the time. For people who tend to use their phone for looking up things on the internet, checking up on social media, or playing the occasional game, I recommend the "Oppo A31 (2020) 128GB" over the "BLU J4 (2019) 32GB". Both the "BLU J4 (2019) 32GB" and the "Oppo A31 (2020) 128GB" can be easily used for this kind of purpose.
The battery life of the "Oppo A31 (2020) 128GB" is well equipped to handle long hours of gaming, video playback, and other kinds of frequent daily use. The "Oppo A31 (2020) 128GB" has the necessary specs for this kind of purpose.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |
---|---|---|
Review on the battery life of a phone mainly using Social Networks and the Internet | 80/100 | 100/100 |
Review on the battery life of a phone mainly using mainly games and videos | 62/100 | 100/100 |
Compare the storage capacity of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB"
The storage capacity of the BLU J4 (2019) 32GB
The "BLU J4 (2019) 32GB" has 32.0GB of internal memory. It is also compatible with SD cards, so when there is insufficient storage space, then a SD card can be used to add more storage.
The storage capacity of the Oppo A31 (2020) 128GB
The "Oppo A31 (2020) 128GB" has 128.0GB of internal memory. It is also compatible with SD cards, so when there is insufficient storage space, then a SD card can be used to add more storage.
Which has the easier storage to use?
The difference in internal memory is about 96GB. The "Oppo A31 (2020) 128GB" offers plenty of storage for those looking to use a few social media apps and games. Avid gamers should look to the "Oppo A31 (2020) 128GB" for fulfilling their storage needs, as the "BLU J4 (2019) 32GB" unfortunately falls behind here. The "Oppo A31 (2020) 128GB" has the necessary specs for this kind of purpose.
Because the speed of loading from or saving to the SD card is slow, it is suited for saving pictures or videos.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |
---|---|---|
Review on the storage capacity when playing many games | 78/100 | 90/100 |
Review on when you store many pictures and videos | - | - |
Which to buy, the "BLU J4 (2019) 32GB" or "Oppo A31 (2020) 128GB"
At the end of the day which is better, the "BLU J4 (2019) 32GB" or "Oppo A31 (2020) 128GB"?
"BLU J4 (2019) 32GB" is easier for the user to hold and is more compact, and so it is recommended. If you want a larger screen, "Oppo A31 (2020) 128GB" is recommended as it has a 6.5inch screen. The "Oppo A31 (2020) 128GB" also hands down has the superior specs. Between the "Oppo A31 (2020) 128GB" and the "BLU J4 (2019) 32GB", the "Oppo A31 (2020) 128GB" is overall the clear winner.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |
---|---|---|
Handling | 59/100 | 53/100 |
Display | 63/100 | 68/100 |
CPU specs | 28/100 | 89/100 |
General rating | 56/100 | 75/100 |
Is it recommended to buy the BLU J4 (2019) 32GB, compared with other smartphones?
Compared to other smartphones, the "BLU J4 (2019) 32GB" is averagely easy to hold. Although it can be a little difficult, it is the right size to be able to operate with one hand. The screen size is comparable to that of standard smartphones, so it is suited for doing internet searches and browsing or for simple SNS messaging. Also, its specs show that its processing abilities are a bit lower than the average smartphone. This may be okay for people who don't often use their phone, but it's a good idea for people who intend to use it as their main device to choose a smartphone with higher performance capabilities. Judging from the overall specs, the "BLU J4 (2019) 32GB" is a mid-range smartphone.
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Is it recommended to buy the Oppo A31 (2020) 128GB, compared with other smartphones?
Compared to other smartphones, the "Oppo A31 (2020) 128GB" is averagely easy to hold. Although it can be a little difficult, it is the right size to be able to operate with one hand. The screen size is larger than that of standard smartphones. It is suited for typing long texts and so can be used to read or edit office texts. In addition, its processing capability is quite excellent compared to the average smart phone. It is suitable for almost all uses, including games and VR. It may be a bit extravagant for normal use. Looking at the overall specifications, the "Oppo A31 (2020) 128GB" is a middle-range to high-end smart phone.
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What are the spec differences between the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB" ?
A summary of the technical specifications of the "BLU J4 (2019) 32GB" and "Oppo A31 (2020) 128GB". Functions and performance variations on the same model will be highlighted in red.
BLU J4 (2019) 32GB | Oppo A31 (2020) 128GB | |
Color | Blue/Black/Brown | Fantasy White/Mystery Black |
OS | Android | Android |
Dimensions (width x height x thickness) | 72.3mm x 151.0mm x 10.0mm | 75.5mm x 163.9mm x 8.3mm |
Weight | 158.0g | 180.0g |
Display size | 5.5inch | 6.5inch |
Display type | IPS LCD | IPS LCD |
Screen resolution (width x height) | 720 x 1440 | 720 x 1600 |
Pixel density | 292ppi | 269ppi |
Battery capacity | 2200.0mAh | 4230.0mAh |
Chipset | Mediatek MT6765V/CB Helio P35 | |
CPU specs | 1.3GHz×4(4.0-cores) | 2.3GHz+1.8GHz×8(8.0-cores) |
RAM size | 1.0GB | 4.0GB |
Storage size | 32.0GB | 128.0GB |
Rear-camera resolution | 8.0MP | 12.0MP |
Front-camera resolution | 8.0MP | 8.0MP |
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