The question of how much weighs a Xiaomi Redmi 4 phone often arises not just out of curiosity, but out of practical necessity. For some users, this parameter is critical when choosing a case with an additional battery, where every gram is important.
In 2016-2017, Xiaomi released three different models under similar names: the standard Redmi 4, the more compact Redmi 4A and the popular Redmi 4X. The weight of each of them differs significantly due to the difference in the materials of the case and the capacity of the installed battery.
In this article, we’ll take a closer look at the physical characteristics of all versions so you can get accurate data. Understanding how much the Xiaomi Redmi 4 weighs in different configurations will help you better navigate the specifications or assess the state of the device when buying a used gadget.
Differences in mass between the Redmi 4 modifications
The main reason for the difference in weight is the design of the case and the size of the energy elements. The standard version of Redmi 4 (Primo) received a metal body and a battery with a capacity of 4100 mAh, which made it significantly heavier than competitors. The weight of this smartphone is 156 grams, which is quite standard for a device with a screen of 5 inches is a tangible indicator.
That’s a big change when it comes to the Redmi 4X, which was a hit with a compact 5-inch screen and a huge 4100mAh battery, but to keep the weight within reasonable limits with this power consumption, engineers had to use lighter aluminum alloys in the frame and back cover.
⚠️ Warning: Don't confuse device mass with battery charge.The 156g weight of the Redmi 4 is a static parameter that doesn't change over time, unlike the battery chemistry, which degrades.
The lightest in the lineup was the Redmi 4A, which was marketed as a budget solution with a plastic case and a smaller screen (5 inches vs. 5 inches in older models, but with different frames), weighing only 131 grams, making it one of the lightest smartphones of the period with a screen of this size.
Specifications and weight of Redmi 4X
The Redmi 4X deserves special attention because it is the most searched for when asked about the weight of the series, which became the benchmark for autonomy in a compact form factor, and the use of a Snapdragon 435 processor, which was made using a more slimmer process, was able to reduce heat generation and optimize power consumption.
Despite the metal body, the device has been kept at 146 grams, 10 grams lighter than the older brother, with the same battery capacity, and the secret lies in the thinner profile of the body and the lack of a protruding part of the camera, which also affects ergonomics.
- 📱 Screen: IPS matrix with a diagonal of 5.0 inches and resolution 720p.
- 🔋 Battery: Non-removable Li-Pol battery with a capacity of 4100 mAh.
- ⚖️ Dimensions: 139.2 x 69.9 x 8.7 mm, which gives an excellent layout density.
For users who are planning to repair or replace components, it is important to know that the weight of the modules inside is also unevenly distributed: the main mass at the bottom is occupied by the battery, while the upper part is lighter due to the presence of the motherboard and the chamber module.
Why is the Redmi 4X lighter than the Redmi 4?
Effect of body materials on total mass
When analyzing how much weighs the Xiaomi Redmi 4 phone, the materials cannot be ignored: The standard version and 4X version are made of metal, while the 4A is made of plastic.The metal alloy (aluminum 6000 series) provides better heat transfer, but adds weight.
The Redmi 4A's plastic body is much lighter, but it's less likely to remove heat from the processor. It's a compromise that engineers have made to reduce price and weight. The 25-gram difference between the plastic and metal versions is felt in the hand, especially when used for long periods without a case.
The weight of the protective glass should also be considered. All models in the series used rounded glass (2.5D), which is heavier than flat, but more pleasant tactile. In the more expensive versions with protection Gorilla Glass, the weight could be slightly higher due to chemical hardening of the material structure.
⚠️ Note: When buying protective glass, keep in mind that glue (full glue) will add more to the device 5-10 gram to the final weight, which can be critical for users sensitive to the weight of the gadget.
If you plan to use your smartphone in an environment where every second of work is important, a metal body is preferable. It dissipates heat better, preventing the processor from trotting, even if it adds extra grams to the device.
Comparative Characteristics Table of the Redmi 4 Series
To organize the information, we've developed a detailed table that will help you quickly navigate the differences between the three main models of the lineup released at different times.
| Characteristics | Redmi 4 (Primo) | Redmi 4X | Redmi 4A |
|---|---|---|---|
| Weight. | 156 | 146 | 131g |
| Case material | Metal | Metal | Plastic. |
| Battery capacity | 4100mAh | 4100mAh | 3120 mAh |
| Screen diagonal | 5.0" | 5.0" | 5.0" |
| Processor | Snapdragon 430 | Snapdragon 435 | Snapdragon 425 |
As you can see from the table, the Redmi 4 has the most mass, despite the identical screen size of all models, due to the design features and different density of the interior elements.
For those who resell or evaluate devices, this data may be an indirect indication of originality: If the weight of the device deviates greatly from the stated 146-156 grams for metal versions, this may indicate the replacement of the battery with a non-original one or the use of substandard materials during repairs.
☑️ Checking the condition of the used Redmi 4
Ergonomics and usability
The weight of a smartphone is not just a number on the spec, it is a factor that affects the fatigue of the hand. At 156 grams, the Redmi 4 feels solid in the hand, creating a sense of reliability. However, with prolonged reading or watching video with one hand, fingers can tire faster than with a lighter 4A.
The center of gravity in these devices is shifted downwards by the battery, and that's a good thing for ergonomics: the phone doesn't want to slip out of its hands with the screen down. Xiaomi managed to distribute the mass intelligently, making the top lighter.
- 👍 Weight Pros: Feeling premium, better cooling, resistance to wind gusts when talking.
- 👎 Weight cons: Fatigue when used with one hand, strength requirements of covers.
- ⚖️ Balance: The optimal weight range for most users is considered to be the weight range. 140-160 gram.
If you're looking for an older person or child, the 131-gram Redmi 4A will be the preferred model, and the lower weight reduces the risk of screen damage from an accidental fall due to less fall inertia.
💡
Use lightweight silicone cases for the Redmi 4 to keep the device from increasing and without the weight of the device. Heavy armored cases can make using a smartphone with one hand almost impossible.
Effects of weight on autonomy and heating
There's a direct correlation between battery weight and battery life. Lithium-polymer batteries have a certain energy density. To get 4100 mAh in Redmi 4 and 4X, it took a physically large and heavy power cell. It's the battery that makes up the lion's share of the smartphone's mass.
The heavier metal body also acts as a radiator, and when you use navigation or games, heat is transferred to the body, and the heavier body acts as a buffer, slowly heating and cooling down, which protects the components from sudden temperature surges.
⚠️ Warning: If your Redmi 4 suddenly becomes lighter (for example, after replacing the battery), make sure that the original heat pad is not forgotten inside.
In lower-weight models like the 4A, the density of the layout is lower and the heat is less dissipated despite the lower processing power, so weight is an indicator of cooling system quality and grid capacity.
💡
The weight of the smartphone Redmi 4 directly depends on the capacity of its battery and materials of the case: metal body and 4100 mAh give ~150g, plastic and 3120 mAh - ~130g.