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Vivo iQOO U1x 128GB vs vivo iQOO 3 5G 256GB: Full Comparison!

Created date: 2020-10-21 14:42:44

vivo iQOO U1x 128GBvivo iQOO 3 5G 256GB
vivo iQOO U1x 128GBvivo iQOO 3 5G 256GB

Are you having trouble comparing the differences in features and performance of the "vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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.

vivo iQOO U1x 128GBvivo iQOO 3 5G 256GB
vivo iQOO U1x 128GB

vivo iQOO 3 5G 256GB

General rating:
Holding comfortrating-image3.0
76.3mm x 164.4mm x 8.4mm
rating-image3.0
74.9mm x 158.5mm x 9.2mm
Weightrating-image2.7
192.3g
rating-image2.4
214.5g
Screen sizerating-image4.5
6.51inch
rating-image4.5
6.44inch
Display qualityrating-image2.7
269ppi
rating-image4.3
408ppi
Battery liferating-image
rating-image4.1
4400.0mAh
Processing powerrating-image4.5
2.0GHz+1.8GHz×8(8.0-cores)
rating-image4.9
2.84GHz+2.42GHz+1.8GHz×8(8.0-cores)
Memory capacityrating-image4.5
6.0GB
rating-image5.0
12.0GB
Storage capacityrating-image4.5
128.0GB
rating-image4.6
256.0GB
Rear camera performancerating-image3.1
13.0MP
rating-image4.9
48.0MP
Front camera performancerating-image2.9
8.0MP
rating-image3.8
16.0MP

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", performance comparison

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB" 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 "vivo iQOO U1x 128GB" has a width of 76.3mm, a length of 164.4mm, and a thickness of 8.4mm. Also, the "vivo iQOO 3 5G 256GB" has a width of 74.9mm, a length of 158.5mm, and a thickness of 9.2mm.

Comparing the width and thickness of the body, there isn't much difference between the "vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB" in terms of size. For that reason, the ease of gripping and carrying the devices in one hand is about the same for both. Therefore it's better to compare them in terms of performance and functionality.

Comparing the width and thickness of the body, there isn't a large difference in size between the "vivo iQOO U1x 128GB" and the "vivo iQOO 3 5G 256GB". 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, there isn't a big difference in size between the "vivo iQOO U1x 128GB" and the "vivo iQOO 3 5G 256GB". For that reason the ease of carrying and use with one hand is about the same for both. That's why it is better to compare the two in terms of other aspects of performance and functionality.

ScoreDimensions (width x height x thickness)
vivo iQOO U1x 128GB59/10076.3mm x 164.4mm x 8.4mm
vivo iQOO 3 5G 256GB60/10074.9mm x 158.5mm x 9.2mm

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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 "vivo iQOO U1x 128GB" is about 192.3g, and the weight of the "vivo iQOO 3 5G 256GB" is about 214.5g. Comparing the weight of the two devices, the "vivo iQOO U1x 128GB" is a lighter smart phone than the "vivo iQOO 3 5G 256GB", with a difference of about 22.1g. For that reason the "vivo iQOO U1x 128GB" is a smart phone that is less likely than the "vivo iQOO 3 5G 256GB"to put a burden on your fingers and wrist when used for an extended period. That's why we recommend the "vivo iQOO U1x 128GB" over the "vivo iQOO 3 5G 256GB".

ScoreWeight
vivo iQOO U1x 128GB53/100192.3g
vivo iQOO 3 5G 256GB47/100214.5g

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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 "vivo iQOO U1x 128GB" has a 6.51inch display. Also, the "vivo iQOO 3 5G 256GB" has a 6.44inch display. Comparing the screen size, there is a negligible difference in screen size between the "vivo iQOO U1x 128GB" and the "vivo iQOO 3 5G 256GB". 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.

ScoreDisplay size
vivo iQOO U1x 128GB90/1006.51inch
vivo iQOO 3 5G 256GB90/1006.44inch

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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 "vivo iQOO U1x 128GB" is 720 x 1600, and pixel density is 269ppi. Also, the resolution on the "vivo iQOO 3 5G 256GB" is 1080 x 2400, and pixel density is 408ppi. Comparing the pixel count, the "vivo iQOO 3 5G 256GB" has much higher pixel density than the "vivo iQOO U1x 128GB", with a difference of roughly 139ppi. In terms of having better picture quality and exerting less strain on the eyes, the "vivo iQOO 3 5G 256GB" is superior to the "vivo iQOO U1x 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 "vivo iQOO 3 5G 256GB" over the "vivo iQOO U1x 128GB".

ScorePixel density
vivo iQOO U1x 128GB54/100269ppi
vivo iQOO 3 5G 256GB85/100408ppi

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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.

ScoreBattery capacity
vivo iQOO U1x 128GB - /100
vivo iQOO 3 5G 256GB81/1004400.0mAh

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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 "vivo iQOO U1x 128GB"'s CPU is a Qualcomm SM6115 Snapdragon 662, with performance measured at 2.0GHz+1.8GHz×8(8.0-cores). Also, the "vivo iQOO 3 5G 256GB"'s CPU is a Qualcomm SM8250 Snapdragon 865, with performance measured at 2.84GHz+2.42GHz+1.8GHz×8(8.0-cores). Comparing CPU performance, the "vivo iQOO 3 5G 256GB" has higher specs compared to the "vivo iQOO U1x 128GB". For that reason, the "vivo iQOO 3 5G 256GB" allows for more comfortable use of apps, and games that run more smoothly. That's why we recommend the "vivo iQOO 3 5G 256GB" over the "vivo iQOO U1x 128GB".

ScoreCPU specs
vivo iQOO U1x 128GB89/1002.0GHz+1.8GHz×8(8.0-cores)
vivo iQOO 3 5G 256GB98/1002.84GHz+2.42GHz+1.8GHz×8(8.0-cores)

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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 "vivo iQOO U1x 128GB" is 6.0GB and the weight of the "vivo iQOO 3 5G 256GB" is 12.0GB. Comparing the devices in terms of RAM, the "vivo iQOO 3 5G 256GB" has more RAM than the "vivo iQOO U1x 128GB", with a difference of about 6GB. For that reason the "vivo iQOO 3 5G 256GB" allows for smoother multitasking than the "vivo iQOO U1x 128GB", and apps are less likely to crash. In addition the "vivo iQOO 3 5G 256GB" allows for smoother enjoyment of 3D games and VR. For this reason, we recommend the "vivo iQOO 3 5G 256GB".

ScoreRAM size
vivo iQOO U1x 128GB90/1006.0GB
vivo iQOO 3 5G 256GB99/10012.0GB

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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 "vivo iQOO U1x 128GB" is 128.0GB. Also the "vivo iQOO 3 5G 256GB" is 256.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB". 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.

ScoreStorage size
vivo iQOO U1x 128GB90/100128.0GB
vivo iQOO 3 5G 256GB91/100256.0GB

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB" 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.

"vivo iQOO U1x 128GB" has a 13.0MP main camera. Also, "vivo iQOO 3 5G 256GB" has a 48.0MP main camera. Comparing rear camera performance, the "vivo iQOO 3 5G 256GB" has a much higher pixel count compared to the "vivo iQOO U1x 128GB", with a roughly 35MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "vivo iQOO 3 5G 256GB" is superior to the "vivo iQOO U1x 128GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "vivo iQOO 3 5G 256GB" over the "vivo iQOO U1x 128GB".

ScoreRear-camera resolution
vivo iQOO U1x 128GB61/10013.0MP
vivo iQOO 3 5G 256GB97/10048.0MP

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", 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.

"vivo iQOO U1x 128GB" has an 8.0MP front camera and "vivo iQOO 3 5G 256GB" has an 16.0MP front camera. Comparing rear camera performance, the front camera of the "vivo iQOO 3 5G 256GB" has a much higher pixel count compared to the "vivo iQOO U1x 128GB", with a roughly 8MP difference. As a result, the "vivo iQOO 3 5G 256GB" is more suited than the "vivo iQOO U1x 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 "vivo iQOO 3 5G 256GB" over the "vivo iQOO U1x 128GB".

ScoreFront-camera resolution
vivo iQOO U1x 128GB58/1008.0MP
vivo iQOO 3 5G 256GB75/10016.0MP

"vivo iQOO U1x 128GB" and "vivo iQOO 3 5G 256GB", performance comparison by specification sheet

vivo iQOO U1x 128GBvivo iQOO 3 5G 256GB
Imagevivo iQOO U1x 128GBvivo iQOO 3 5G 256GB
Makervivovivo
Release date2020-10-312020-03-04
ColorBlack/BlueVolcano Orange/Tornado Black/Quantum Silver
OSAndroidAndroid
Dimensions (width x height x thickness)76.3mm x 164.4mm x 8.4mm74.9mm x 158.5mm x 9.2mm
Weight192.3g214.5g
Display size6.51inch6.44inch
Display typeIPS LCDSuper AMOLED
Screen resolution (width x height)720 x 16001080 x 2400
Pixel density269ppi408ppi
ChipsetQualcomm SM6115 Snapdragon 662Qualcomm SM8250 Snapdragon 865
CPU specs2.0GHz+1.8GHz×8(8.0-cores)2.84GHz+2.42GHz+1.8GHz×8(8.0-cores)
RAM size6.0GB12.0GB
Storage size128.0GB256.0GB
Rear-camera resolution13.0MP48.0MP
Front-camera resolution8.0MP16.0MP

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