In the world of the mobile industry, it is rare to find devices that, years after their release, continue to attract keen interest from enthusiasts and budget users. Xiaomi Redmi Note 3 Pro - this is exactly the case when the price-performance ratio has become the standard for an entire generation of smartphones. Released in 2015, it offered a metal body, a fingerprint scanner, and a powerful processor at a price that rivals couldn't match.
Today we will look in detail at why this device is still relevant for certain tasks, what problems it has when purchased on the secondary market, and how to properly maintain its software. If you are considering buying a used gadget or want to understand the success story of the brand Xiaomi, this information will be critical to you.
Design and ergonomics: Metal versus plastic
While most competitors in the budget segment used plastic cases, the company's engineers decided to go a different route. The body of the device is made of solid aluminum alloy, which gives it a premium look and feel. However, this design has its own nuances: metal transfers heat well, so under intense load the case can become noticeably hot.
The fingerprint scanner located on the rear panel was a real revolution for its time. It works quickly and accurately, allowing you not only to unlock the screen, but also to confirm payments. Please note that over time the anodizing layer may wear off on the corners if you do not use a protective cover.
The ergonomics of the device are thought out to the smallest detail, but there is one significant drawback - the dimensions. The smartphone is quite heavy and wide, which may be inconvenient for people with small hands. However, the absence of plastic inserts on the back cover guarantees better signal quality and more secure mounting of the modules.
⚠️ Attention: When purchasing a used copy, be sure to check for dents on the frame of the case, since aluminum is not as easily restored as plastic, and dents can put pressure on the display.
Hardware and performance: Why Snapdragon is better than MediaTek
The main trump card of the version Pro is the processor Qualcomm Snapdragon 650. Unlike the regular version, which used a MediaTek chip, here you get more stable operation, better modem support and optimization for modern applications. This decision allowed the device to remain relevant even several years after its release.
Graphics accelerator Adreno 510 handles most games at medium settings, although modern heavy projects may run with stuttering. The amount of RAM is 3 GB, which is the minimum standard for comfortable work in 2026, but it is enough for basic tasks.
- 🚀 The processor provides high energy efficiency under average load
- 📶 The modem supports frequency aggregation for higher internet speeds
- 🎮 Graphics allow you to run older versions of popular games without lags
It is important to understand that performance directly depends on the condition of the cooling system. Over time, the thermal paste inside the device can dry out, causing throttling (lower frequency) when it heats up. If you plan to use your smartphone for gaming, you will need to replace the thermal interface.
Screen and multimedia: Color reproduction and brightness
The 5.5-inch display uses an IPS matrix, which provides excellent color reproduction and wide viewing angles. Permission 1920×1080 pixels allows you to view content in high detail, and the brightness is sufficient for outdoor use, although it may not be exposed to direct sunlight.
The glass covering the display has an oleophobic coating, which wears off over time. This results in greasy fingerprints, which reduces the visual experience of the screen. It is recommended to use protective glass with a high-quality oleophobic layer.
The sound in the device is monophonic, which is a compromise for the sake of the thickness of the case. The speaker is located on the bottom edge and provides clear sound, but without deep bass. For a complete multimedia experience, it is better to use headphones or an external speaker.
- IPS matrix
- OLED matrix
- High brightness
- 2K resolution
Autonomy and charging: Real work without recharging
The 4050 mAh battery has become one of the main factors in the success of the model. In standby mode, the smartphone can stand for several days, and with active use, you can easily get a full day of work without searching for an outlet. However, battery capacity inevitably decreases over time.
Support for fast charging allows you to restore your energy reserve to 60% in 30 minutes, which is very convenient in the hustle and bustle of weekdays. But you should not use non-original power supplies, as the power controller may not withstand unstable voltage.
- 🔋 In talk mode the battery lasts up to 12-15 hours
- 🎬 Watching video ensures work for 8-10 hours
- 🌐 Surfing the Internet with 4G enabled takes about 6-7 hours
⚠️ Attention: If the smartphone begins to discharge quickly or turns off when the charge is 20-30%, most likely the battery has reached its limit and requires replacement.
To extend the life of the battery, try not to discharge it to zero and do not constantly leave it on charge all night, although modern controllers eliminate this.
Software and firmware: MIUI and global versions
The operation of the device is based on the shell MIUI, which was constantly updated and added new features even for older models. However, official support was discontinued several years ago, leaving users with a choice: stay on the old stable version or install custom firmware.
Custom builds, such as LineageOS or Pixel Experience, allow you to update your Android version to a more recent version, which is important for application security and compatibility. But installing unofficial software requires unlocking the bootloader, which may void the warranty (if it is still valid) and reset all data.
It is important to note that in some regions there are problems with the operation of Google services on Chinese versions of firmware. You will have to manually install services or change the region in the settings to get full functionality.
☑️ Preparation for firmware
If you are an inexperienced user, it is better not to mess with the bootloader settings unless necessary. The official firmware, even the old one, works more stable and safer for banking applications.
What to do if the phone went into Bootloop?
If the device does not turn on after flashing the firmware, try entering Recovery mode (press the volume down button and power), clear the cache (Wipe Cache) and reset to factory settings (Wipe Data). If this does not help, you will need to re-flash the firmware via your computer.
Comparative analysis of characteristics
To better understand the model’s place in history, let’s compare its key parameters with modern budget analogues. Although it is inferior to new devices in absolute numbers, it still looks decent in certain aspects.
| Parameter | Xiaomi Redmi Note 3 Pro | Modern state employee |
|---|---|---|
| Processor | Snapdragon 650 | Unisoc / Helio G-series |
| Memory | 32/64 GB + microSD slot | 64/128 GB + microSD slot |
| Camera | 16 MP (Sony IMX298 sensor) | 13-48 MP (different sensors) |
| Housing | Solid metal | Plastic or glass |
Pay attention to the camera sensor. Even today pictures from the matrix Sony IMX298 look better than many cheap sensors of modern state employees, thanks to high-quality processing and the presence of optical stabilization in some versions.
However, the lack of support for 5G and new Wi-Fi standards limits the use of the device in scenarios that require maximum data transfer speeds. For watching videos and social networks this is not a problem, but for high quality streaming there may be delays.
Redmi Note 3 Pro is a standard of case reliability and build quality, which is difficult to find in modern devices at a similar price.
What to look for when buying used
The used smartphone market is full of offers, but not all of them are of equal quality. When inspecting the device, be sure to check the operation of all buttons, including the volume rocker and power button. Often these elements are the first to fail due to mechanical wear.
Pay special attention to the condition of the display. Check for dead pixels, spots, or uneven backlighting. Also test the operation of the sensor by swiping your finger across the entire screen without lifting it off.
- ✅ Check the fingerprint scanner (should work instantly)
- ✅ Make sure the camera focuses quickly and without “jumping”
- ✅ Test the connectors: the charging port and 3.5 mm jack should hold the contacts tightly
If you buy a device second-hand, be sure to ask the seller to show how the phone charges and holds a charge in real conditions. Hidden battery defects often only appear under load.
⚠️ Attention: Never buy a device without checking the IMEI on the manufacturer's website to make sure that the phone is not stolen or blocked by the telecom operator.
Compare the phone's production date (often listed on the box or in the settings) with the age of the battery - if the phone is 5 years old, the battery almost certainly needs replacing.
Frequently asked questions (FAQ)
Is it possible to install Android 10 or higher on Redmi Note 3 Pro?
Officially, no. The latest official version of MIUI for this model is Android 6.0. However, there are custom firmwares (LineageOS, Resurrection Remix) that allow you to install Android 10, 11 and even newer, but this requires unlocking the bootloader and certain technical skills.
Why does my phone get hot quickly when charging?
This is normal for an aluminum case that acts as a heatsink. However, if the heat is too strong (burns your hand), there may be a problem with the power controller, an old battery, or the use of a non-original charging unit.
Does NFC work on this model?
Yes, version Pro equipped with an NFC module that allows you to use the Mi Pay contactless payment function (in some regions) and data exchange. Make sure that when purchasing you have the version with NFC, as some regional modifications may have differences.
How to reset your password if you forgot?
The most reliable way is to do a full reset via Recovery mode (Power + Volume Up). This will erase all data from the device. If you remember your Mi Account password, unlocking can be done via the cloud, but this only works if the remote search feature has been enabled in advance.
Which version is better: Chinese or global?
The Global version is preferable as it has pre-installed Google services, the correct keyboard layout and support for all communication frequencies available in your region. The Chinese version may require manual installation of services and may have problems with notifications.