Which should you buy, the Xiaomi Redmi Note 9 128GB or Xiaomi Mi A3 128GB? We offer a thorough comparison of the differences in functions, specifications and performance between the two
Created date: 2020-04-29 16:45:33
Are you having trouble comparing the differences in features and performance of the "Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", or unsure about their differences in ease-of-use, and wondering which to buy? We did a deep-dive comparison of the features, specs, and capabilities of these two smartphone, and provided our rating of which one was a better buy.
Xiaomi Redmi Note 9 128GB | Xiaomi Mi A3 128GB | |||
General rating: | 69.8/100 (The 3462th of all smartphones) | 75/100 (The 3269th of all smartphones) | ||
Holding comfort | 57/100 | 67/100 | ||
Weight | 50/100 | 60/100 | ||
Screen size | 90/100 | 90/100 | ||
Display quality | 83/100 | 57/100 | ||
Battery life | 83/100 | 80/100 | ||
Processing power | 89/100 | 89/100 | ||
Memory capacity | 70/100 | 90/100 | ||
Storage capacity | 90/100 | 90/100 | ||
Rear camera performance | 97/100 | 97/100 | ||
Front camera performance | 71/100 | 97/100 | ||
Contents
- 1."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", performance comparison
- 1-0."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", which is more comfortable to hold? Weight comparison
- 1-2."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB" size comparison. Which to choose?
- 1-3."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB" rear camera performance comparison. Which has a higher resolution?
- 1-4."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", whose front camera has a better picture quality?
- 1-5."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", which has a clearer display?
- 1-6."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", whose display is easier to use?
- 1-7."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", which has more data storage?
- 1-8."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", what's the difference in memory capacity?
- 1-9."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", which has better CPU?
- 1-10."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", a summary of the differences in battery life
- 2."Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", performance comparison by specification sheet
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", performance comparison
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB" size comparison. Which to choose?
The size of the body has a big influence on the ease of carrying and one-handed operation. The narrower the width, the easier it is to firmly grasp and hold, but you also have to take into account the device's thickness. Also, if the width and height are smaller, its easier to operate one-handed since its easier to extend your fingers. On the contrary, if the width and height are large, it's difficult to fit in your pocket and is bulky even when put in a bag, and portability is impaired.
The "Xiaomi Redmi Note 9 128GB" has a width of 77.2mm, a length of 162.3mm, and a thickness of 8.9mm. Also, the "Xiaomi Mi A3 128GB" has a width of 71.9mm, a length of 153.5mm, and a thickness of 8.5mm.
Comparing the width and thickness of the body, the "Xiaomi Mi A3 128GB" is considerably smaller and more compact than the "Xiaomi Redmi Note 9 128GB". The "Xiaomi Mi A3 128GB" excels over the "Xiaomi Redmi Note 9 128GB" in terms of being easier to hold with one hand and is therefore less likely to be accidentally dropped. If you're looking for a smart phone with superior grip and hand fit, we recommend purchasing the "Xiaomi Mi A3 128GB" over the "Xiaomi Redmi Note 9 128GB".
Comparing the width and thickness of the body, there isn't a large difference in size between the "Xiaomi Redmi Note 9 128GB" and the "Xiaomi Mi A3 128GB". For that reason their one-handed operability, portability, and bulkiness when carried is about the same. That's why I think it's better to compare them in terms of other aspects of performance and functionality.
Comparing the overall size of the two devices, the "Xiaomi Mi A3 128GB" has a large size compared to the "Xiaomi Redmi Note 9 128GB". For that reason the "Xiaomi Mi A3 128GB" is a size that is easier to use in one hand and comfortably carry than the "Xiaomi Redmi Note 9 128GB". That's why we recommend the "Xiaomi Mi A3 128GB".
Score | Dimensions (width x height x thickness) | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 57/100 | 77.2mm x 162.3mm x 8.9mm |
Xiaomi Mi A3 128GB | 67/100 | 71.9mm x 153.5mm x 8.5mm |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", which is more comfortable to hold? Weight comparison
The weight of the device affects hand fatigue and the burden placed upon the wrist. The lighter it is, the longer you'll be able to operate the device without tiring. Also, if the burden placed on the wrist is lower, you'll be able to use the device more comfortably. However if the weight isn't right for you, it could place more of a burden on your body, causing you to feel stress.
The weight of the "Xiaomi Redmi Note 9 128GB" is about 199.0g, and the weight of the "Xiaomi Mi A3 128GB" is about 173.8g. Comparing the weight of the two devices, the "Xiaomi Mi A3 128GB" is a considerably lighter smart phone than the "Xiaomi Redmi Note 9 128GB", and there is a difference of about 25.1g. In terms of the burden placed upon your fingers and wrist, the "Xiaomi Mi A3 128GB" is superior to the "Xiaomi Redmi Note 9 128GB". If you are going for a smart phone that won't lead to hand fatigue even after extended use, and is less likely to place a burden on your fingers, we recommend purchasing the "Xiaomi Mi A3 128GB" over the "Xiaomi Redmi Note 9 128GB".
Score | Weight | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 50/100 | 199.0g |
Xiaomi Mi A3 128GB | 60/100 | 173.8g |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", whose display is easier to use?
The size of the screen affects usability and screen visibility. A larger screen means larger letters and buttons on apps, so the user is less likely to tap adjacent buttons by mistake. In addition, the user can enjoy a more intense experience when playing games and watching videos.
The "Xiaomi Redmi Note 9 128GB" has a 6.53inch display. Also, the "Xiaomi Mi A3 128GB" has a 6.09inch display. Comparing the screen size, there is a negligible difference in screen size between the "Xiaomi Redmi Note 9 128GB" and the "Xiaomi Mi A3 128GB". As a result, the app buttons on both are equally easy to press. We recommend comparing them based on other aspects of performance and functionality.
Score | Display size | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 90/100 | 6.53inch |
Xiaomi Mi A3 128GB | 90/100 | 6.09inch |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", which has a clearer display?
Pixel density affects picture quality, and the higher the pixel density, the better the picture quality, which means the user can gain more enjoyment from games and videos. In addition, higher picture quality decreases eyestrain, which means that the user will experience less eye fatigue after prolonged use.
The resolution on the "Xiaomi Redmi Note 9 128GB" is 1080 x 2340, and pixel density is 394ppi. Also, the resolution on the "Xiaomi Mi A3 128GB" is 720 x 1560, and pixel density is 282ppi. Comparing the pixel count, the "Xiaomi Redmi Note 9 128GB" has much higher pixel density than the "Xiaomi Mi A3 128GB", with a difference of roughly 112ppi. In terms of having better picture quality and exerting less strain on the eyes, the "Xiaomi Redmi Note 9 128GB" is superior to the "Xiaomi Mi A3 128GB". If you are looking for a smartphone that is easy on the eyes, displaying texts and pictures clearly without any blurring, we recommend the "Xiaomi Redmi Note 9 128GB" over the "Xiaomi Mi A3 128GB".
Score | Pixel density | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 83/100 | 394ppi |
Xiaomi Mi A3 128GB | 57/100 | 282ppi |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", a summary of the differences in battery life
Battery performance greatly affects battery life, but greater battery capacity does not necessarily mean greater battery life, since battery efficiency should also be considered. Bigger screens and higher CPU performance will mean the batteries are depleted more quickly.
The "Xiaomi Redmi Note 9 128GB" is 5020.0mAh, and the "Xiaomi Mi A3 128GB" is 4030.0mAh. Regarding battery capacity, there is a negligible difference in battery capacity between the "Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB". Since both have roughly equal battery life, you are better off comparing them based on other aspects of performance and functionality.
Score | Battery capacity | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 83/100 | 5020.0mAh |
Xiaomi Mi A3 128GB | 80/100 | 4030.0mAh |
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"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", which has better CPU?
CPU performance affects the ability to process programs, and the ability to process programs is determined by the product of the number of cores in the CPU and the CPU frequency. The higher this performance is, the more smoothly apps and games will run, and with low performance apps and games become heavy and stress is experienced.
The "Xiaomi Redmi Note 9 128GB"'s CPU is a MediaTek Helio G85, with performance measured at 2.0GHz×8(8.0-cores). Also, the "Xiaomi Mi A3 128GB"'s CPU is a Qualcomm SDM665 Snapdragon 665, with performance measured at 2.0GHz+1.8GHz×8(8.0-cores). Comparing CPU performance, there is almost no difference in the specs of the "Xiaomi Redmi Note 9 128GB" and the "Xiaomi Mi A3 128GB". For that reason the level of smoothness felt when using apps and comfortable handling of games is about the same. For that reason it is better to compare them in terms of other aspects of performance and functionality.
Score | CPU specs | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 89/100 | 2.0GHz×8(8.0-cores) |
Xiaomi Mi A3 128GB | 89/100 | 2.0GHz+1.8GHz×8(8.0-cores) |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", what's the difference in memory capacity?
RAM affects multitasking ability and the stability of apps. The larger the amount of RAM is, the more stability there will be even in situations where multiple apps are running simultaneously, allowing for comfortable use. In addition, animation will be more smooth, and apps will be less likely to freeze or crash. Also, without sufficient RAM, there are games you won't be able to run, so it is necessary to be careful.
The weight of the "Xiaomi Redmi Note 9 128GB" is 4.0GB and the weight of the "Xiaomi Mi A3 128GB" is 6.0GB. Comparing the devices in terms of RAM, the "Xiaomi Mi A3 128GB" has a significantly larger amount of RAM than the "Xiaomi Redmi Note 9 128GB", with a difference of about 2GB. In terms of the unlikeliness of crashing and the ease of multitasking, 3D games and VR, the "Xiaomi Mi A3 128GB" is superior to the "Xiaomi Redmi Note 9 128GB". If you're looking for a smart phone that can run multiple apps simultaneously with stability and also allows you to comfortably enjoy 3D games and VR, then we recommend purchasing the "Xiaomi Mi A3 128GB" over the "Xiaomi Redmi Note 9 128GB".
Score | RAM size | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 70/100 | 4.0GB |
Xiaomi Mi A3 128GB | 90/100 | 6.0GB |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", which has more data storage?
Storage capacity affects the amount of data that is capable of being stored. The larger the storage capacity, the more pictures you can take and the more applications you can install. In addition, if your smartphone accepts SD cards, then you can increase its storage capacity. However, there are performance related drawbacks, including a slower data transfer rate than the primary memory, and you cannot transfer all your data on the card, so be warned.
The data storage capacity of the "Xiaomi Redmi Note 9 128GB" is 128.0GB. Also the "Xiaomi Mi A3 128GB" is 128.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB". As a result, you can save roughly the same amount of pictures, and install roughly the same amount of applications, on either phone. You are better off comparing them based on other aspects of performance and functionality.
Score | Storage size | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 90/100 | 128.0GB |
Xiaomi Mi A3 128GB | 90/100 | 128.0GB |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB" rear camera performance comparison. Which has a higher resolution?
One factor that determines the performance of the exterior camera located on the back of the device (the rear/back camera) is the pixel count. The larger the pixel count, the higher the resolution of the pictures you can take, and the cleaner the pictures will look when printed.
"Xiaomi Redmi Note 9 128GB" has a 48.0MP main camera. Also, "Xiaomi Mi A3 128GB" has a 48.0MP main camera. Comparing rear camera performance, the "Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB" have approximately the same pixel count. As a result, they can both take pictures and shoot videos of roughly the same quality. Therefore, we recommend comparing the two based on other aspects of performance and functionality.
Score | Rear-camera resolution | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 97/100 | 48.0MP |
Xiaomi Mi A3 128GB | 97/100 | 48.0MP |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", whose front camera has a better picture quality?
One factor that determines the performance of the exterior camera located on the front of the device (the in/front camera) is the pixel count. The larger the pixel count, the higher the resolution of the pictures you can take, and the cleaner the pictures will look when printed.
"Xiaomi Redmi Note 9 128GB" has an 13.0MP front camera and "Xiaomi Mi A3 128GB" has an 32.0MP front camera. Comparing rear camera performance, the front camera of the "Xiaomi Mi A3 128GB" has a much higher pixel count compared to the "Xiaomi Redmi Note 9 128GB", with a roughly 19MP difference. As a result, the "Xiaomi Mi A3 128GB" is more suited than the "Xiaomi Redmi Note 9 128GB" for shooting videos and taking pictures. If you are looking for a smartphone that is suited for shooting high resolution selfies which will look clean when printed, we recommend the "Xiaomi Mi A3 128GB" over the "Xiaomi Redmi Note 9 128GB".
Score | Front-camera resolution | |
---|---|---|
Xiaomi Redmi Note 9 128GB | 71/100 | 13.0MP |
Xiaomi Mi A3 128GB | 97/100 | 32.0MP |
"Xiaomi Redmi Note 9 128GB" and "Xiaomi Mi A3 128GB", performance comparison by specification sheet
Xiaomi Redmi Note 9 128GB | Xiaomi Mi A3 128GB | |
Image | ||
Maker | Xiaomi | Xiaomi |
Release date | 2020-05-30 | 2019-07 |
Color | Forest Green/Midnight Grey/Polar White | Kind of Gray/Not just Blue/More than White |
OS | Android | Android |
Dimensions (width x height x thickness) | 77.2mm x 162.3mm x 8.9mm | 71.9mm x 153.5mm x 8.5mm |
Weight | 199.0g | 173.8g |
Display size | 6.53inch | 6.09inch |
Display type | IPS LCD | Super AMOLED |
Screen resolution (width x height) | 1080 x 2340 | 720 x 1560 |
Pixel density | 394ppi | 282ppi |
Battery capacity | 5020.0mAh | 4030.0mAh |
Chipset | MediaTek Helio G85 | Qualcomm SDM665 Snapdragon 665 |
CPU specs | 2.0GHz×8(8.0-cores) | 2.0GHz+1.8GHz×8(8.0-cores) |
RAM size | 4.0GB | 6.0GB |
Storage size | 128.0GB | 128.0GB |
Rear-camera resolution | 48.0MP | 48.0MP |
Front-camera resolution | 13.0MP | 32.0MP |
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