Redmi Note 4 and Redmi Note 4X: What is the difference and which model to choose?

Xiaomi Redmi Note 4 and Redmi Note 4X They are still popular in the aftermarket due to their reliability, low price and good performance for the budget segment, but many users confuse these models, considering them identical or different only in small things. The difference between them is much more serious than it seems at first glance.

In this article, we'll go through all the key differences in detail, from the CPU and RAM to the camera and network support, which model is best suited for gaming, photo shooting, long-term autonomy, and where you can find original devices in 2026 without the risk of running into a fake, and pay special attention to the hidden pitfalls that sellers often keep silent about.

1.The history of models: why the Redmi Note appeared 4X?

The Redmi Note 4 was released in August 2016 and became one of Xiaomi’s best-selling smartphones due to its balanced specs and price. However, six months later, in February 2017, the company introduced the Redmi Note. 4X — Updated version with improved "stuffing".

The main reason for the appearance 4X — Switching to a more modern and energy-efficient Qualcomm Snapdragon 625 processor instead of Mediatek Helio X20 It's the original model, and it's improved performance, it's lowered heat, it's increased battery life, and Xiaomi has added support. 4G VoLTE and expanded color options.

⚠️ Note: There are often fakes on the market under the guise of Redmi Note. 4X You can check the model with MediaTek. → The phone. → The model is original. 4X Always has a mido marker in the model code.

In some regions (such as India) Redmi Note 4X It was sold simply as the Redmi Note 4, which further confused customers. To make no mistake, always look at the processor code in specs.

2.CPU and performance: Snapdragon vs MediaTek

The main difference between the models is the chipset. 4 fitted 10-Mediatek Helio nuclear processor X20 (MT6797) clockwise 2.1 GHz. It's a powerful, but outdated chip with architecture. ARM Cortex-A72/A53, which warms at high loads and is not energy efficient.

Redmi Note 4X, In turn, received 8-core Qualcomm Snapdragon 625 (MSM8953) It's 2.0 GHz. Despite having fewer cores, this processor is more stable, heats less, and is better optimized for gaming and multitasking:

• 🎮 Snapdragon 625 is confidently pulling PUBG Mobile is on medium settings, while Helio X20 brake.
• 📱 Multitasking: On 4X can be kept open until 10 Apps without hanging, on the original Note 4 — more 5-6.
• 🔋 Autonomy: Snapdragon 625 on 15-20% more economical, which gives +1.5-2 battery-hour.

It is important to note that Redmi Note 4X It was released in two versions of RAM: 3/32 GB and 4/64 GB. Original Note 4 had only a version 3/32 GB, which also affects the speed of the system.

3.Camera: difference in modules and quality of shooting

On paper, the cameras of both models are identical: the main module on the 13 MP (aperture) f/2.0) and front-facing camera on 5 MP: However, in practice there is a difference, and it is related to the processor and software processing.

Redmi Note 4X The Snapdragon 625 is better at handling the problem:

• 🌃 Night photography: Less noise and clearer details in low light.
• 🎞️ Video: Stabilization works smoother, no jerks when recording in 1080p.
• 🔍 Focus: Autofocus is faster, especially in macro mode.

The original Note 4 helio X20 often re-lights pictures in automatic mode and processes them for longer HDR. In addition, in 4X support added PDAF (phase autofocus, which speeds up focus on 30-40%.

⚠️ Warning: Many vendors claim that the cameras in the models are the same. 4X It uses an updated Sony sensor IMX258 (The original Note 4 – OmniVision OV13850), which works best in low light conditions.

For comparison, examples of photos from both models under the same conditions:

4. Battery and autonomy: who holds the charge longer?

Both models are equipped with a battery capacity 4100 mAh, but the operating time from one charge is different 15-25% favoring the Redmi Note 4X. The reason is the energy efficiency of the processor:

• 📞 Conversations: 4X hold in touch 3-4 one hour longer 28 hourly 3G).
• 🎮 Call of Duty Mobile: The Note 4’s original battery runs out in 3.5 hours, 4X — 4.5 hours.
• 📺 Video: When watching YouTube at medium brightness 4X work out 12-13 clockwork 9-10 note 4.

Also, Redmi Note 4X Supports fast charging of Quick Charge 3.0 (Although the charger in the set goes normal to 5V/2A). The original Note 4 It is only charged in the standard way, from 0 before 100% post 2.5 hourly 1.8 hourly 4X s QC 3.0.

If you are not comfortable with the Redmi Note 4X — However, remember that battery capacity decreases over time. When you buy a used device, check the status of the battery through the AccuBattery app or the engineering menu (#4636##).

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To extend the life of the battery on the Redmi Note 4/4X, Turn off background activity of unnecessary apps in Settings → Battery → Optimize and use dark themes of design.

5. Network support and communications: 4G VoLTE and other nuances

One of the key improvements in the Redmi Note 4X — Support for VoLTE technology (voice) LTE). This means that during the conversation, it does not turn off. 4G-The original Note 4 VoLTE does not support the Internet, and the quality of communication is better in low-course areas, which may be critical for users of carriers such as Tele2 or Yota, where this technology is actively used.

Other differences in network support:

• 📶 4G-ranges: 4X Supports Bands 1/3/5/7/8/38/40, original Note 4 — only 1/3/5/7/8. This is important for traveling abroad.
• 📞 Double. SIM: Both models have a slot for two nano-SIMs, but in the 4X improved antenna insulation, which reduces the number of communication interruptions.
• 🔌 GPS: V 4X Qualcomm IZat chips are used, which catch satellites faster (especially in the city).

⚠️ In Russia, some operators (for example, MTS) may limit speed LTE If you're interested in the maximum speed of the Internet, go with the Redmi Note. 4X.

To check for VoLTE support on your device:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map.
3. Activate the VoLTE call option (if any).

6.Display, Design and Ergonomics: Is There a Difference?

The screens of both models are identical: 5.5-inch IPS permittingly 1920×1080 (Full HD) pixel density 401 The brightness, color reproduction and viewing angles are not different either:

• 🎨 Color options: 4X available in black, gold, rose gold and matte black (version with 4/64 GB). Original Note 4 — Only in black, gold and silver.
• 👆 Touch buttons: B 4X They are illuminated in white, in Note 4 – in red (in some firmware).
• 🔊 Dynamics: B 4X louder 10-15% by better adjusting the amplifier.

The ergonomics of the models are the same: the weight is 165 g, the thickness is 8.45 mm, metal housing with plastic inserts for antennas.

1. Inscriptions on the back: y 4X X added to the model.
2. The color of the backlight of touch buttons (if not changed programmatically).
3. Model code in Settings → About the phone (nikel - Note 4, mido - Note) 4X).

If you care about design, look for the matte black version. 4X — It's less dirty and doesn't slip in your hand. The original Note 4 in a glossy body collects fingerprints much more actively.

7. Firmware and updates: MIUI custom ROM

Both models were originally supplied with MIUI 8 based on Android 6.0 Marshmallow, but the fate of the updates developed differently:

• 📱 Redmi Note 4 (Helio X20): The official updates have been stopped at MIUI 11 (Android 7.0 Nougat) And then there's custom firmware.
• 📱 Redmi Note 4X (Snapdragon 625): Getting updates before MIUI 12.5 (Android 9.0 Pie. Android can be installed unofficially 10/11 LineageOS or Pixel Experience.

To install custom firmware on both models will require:

Unlock the bootloader through the Mi Unlock Tool

Download TWRP for the model (Nikel or Mido)

Make a data backup in TWRP

Download firmware (e.g. LineageOS 18.1)

Disable dm-verity check (if required)

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Important: Redmi Note 4 with Helio X20 It is more difficult to stitch because of problems with drivers and support for custom cores. Snapdragon 625 in 4X More "friendly" to modifications.

⚠️ Note: When unlocking the bootloader on the Redmi Note 4/4X All data is dropped, including photos in internal memory! Move important files to your computer or cloud in advance.

If you don’t plan on installing custom firmware, Redmi Note 4X It wins with a more recent version. MIUI better optimization.

8.Price and relevance in 2026: Is it worth buying?

In 2026, both models can be found on the secondary market in the following price ranges:

• 💰 Redmi Note 4 (3/32 GB): 3 000 — 4 500 ₽ (state").
• 💰 Redmi Note 4X (3/32 GB): 4 500 — 6 000 ₽.
• 💰 Redmi Note 4X (4/64 GB): 6 000 — 8 000 ₽.

Should you buy these smartphones today? The answer depends on your tasks:

If the budget is limited to 5,000 - 6,000 ₽, Redmi Note 4X — One of the best options for used smartphones, but for games or video, it's best to look at more modern models like the Redmi 9 or Poco. M3, Which offer the best price/quality ratio.

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Redmi Note 4X In 2026, it is only relevant as a spare phone, a device for elderly relatives or a workhorse for calls and social networks. For games, photos and modern applications, it is better to choose a model no older than 2020.

FAQ: Frequent questions about Redmi Note 4 and 4X