Xiaomi Redmi Note 4 and Redmi Note 4X: 7 key differences that affect the choice

Xiaomi Redmi Note 4 and Redmi Note 4X are still popular in the aftermarket, despite the release of newer models, and are often confused for their similar design and name, but there are critical differences between them that directly affect performance, battery life, and even compatibility with modern applications. If you are faced with a choice between these two devices in 2026, this article will help you figure out which model will suit you.

Both models were released only a few months apart (November 2016 and February 2017, respectively), but the Redmi Note 4X was positioned as an “updated” version of the original Note 4. However, in practice, this is not just an upgrade, but almost a different smartphone under the same brand. The differences lie in hardware, network support and even memory options. Next, we will examine every aspect in detail from the processor to the relevance of firmware in 2026.

1. Processors: Snapdragon vs Helio - who is faster in gaming and everyday tasks?

The main difference between the models is chipsets. The original Redmi Note 4 was equipped with a MediaTek Helio X20 processor (decaadron, 2.1 GHz), while the Note 4X received a Qualcomm Snapdragon 625 (eight-core, 2.0 GHz). On paper, the frequency difference seems small, but in practice it is different.

The Snapdragon 625 in the Note 4X wins in several ways:

• 🎮 Game performance: thanks to the Adreno 506 architecture (against) Mali-T880 MP4 Helio X20) Note 4X It is better at modern games like PUBG Mobile or Call of Duty: Mobile in Medium Settings.
• 🔋 Energy efficiency: 14-nm process technology in the Snapdragon 625 vs. 20 nm in Helio X20 This means less heat and more battery life.
• 📶 Network support: Note only 4X module X9 LTE, which works better with modern communication standards (e.g. VoLTE and ViLTE).

But the Helio X20 in the Redmi Note 4 has one advantage: the decayadron (10 cores) should theoretically be better at distributing the load in multitasking, but in practice, the difference is almost invisible due to the outdated architecture.

⚠️ Note: In 2026, both processors are considered obsolete for heavy duty tasks.If you need a smartphone for gaming or video editing, consider newer models like the Redmi Note 12 or the Redmi Note. POCO X5.

RAM and storage: what were the options for the models?

Both models were offered in different memory configurations, but there are nuances:

Important: The 4/64GB version of the Redmi Note 4X featured faster eMMC 5.1 memory (versus 5.0 in other configurations), which speeded up app loads by 10-15%.

If you plan to use your smartphone to store a lot of photos/video or install heavy games, it is better to choose the Note 4X with 4/64 GB. The 3/32 GB version as early as 2026 may be cramped for modern applications (for example, WhatsApp + Telegram + several games take ~20 GB).

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Before buying, check the actual storage capacity through Settings → About Phone → Storage. Often sellers will specify “64 GB”, but after installing MIUI, only ~52 GB is available.

3 Cameras: the difference in megapixels or something more serious?

On paper, the cameras of both models are identical:

• 📸 Basic: 13 MPP, f/2.0, phase-focus (PDAF), double LED-flash.
• 🤳 Frontal: 5 MPP, f/2.0.

But in practice, there are differences in image processing.

The Redmi Note 4X has a more modern ISP (image processing processor) in the Snapdragon 625, which gives:

• 🌄 Best Details in Photography in HDR (less-lighted areas).
• 🌃 Less noise in night photos (because of better noise reduction).
• 🎥 More stable video recording in Full HD 30fps (fewer artifacts).

The Redmi Note 4 on the Helio X20 is more focused in good lighting conditions thanks to MediaTek optimization. If you take pictures on the go often (such as children or animals), this can be an advantage.

⚠️ Attention: In 2026, both models of cameras are obsolete for serious photography. 4K, EIS (Electronic stabilization) and modern modes such as Night Mode. For high-quality photos, it is better to consider the Redmi Note 11 or newer.

4. Battery and autonomy: who lives longer without an outlet?

Both models are equipped with a 4100 mAh battery, but battery life is different due to the processors:

• 🔋 Redmi Note 4X (Snapdragon 625) average charge on 15-20% More energy efficient architecture.
• ⚡ Both models support the Quick Charge. 3.0, But the charger in the kit is normal. 5V/2A. For fast charging, you need to buy an adapter separately.

Real tests (with moderate use: social networks, instant messengers, 2-3 hours of video per day):

If you’re a bit more self-contained (like traveling around), the Note 4X will be much more profitable, and both smartphones will require battery replacement in 2026, with the original batteries losing up to 30-40% of their capacity after 5-7 years of use.

5. Network support: 4G, VoLTE and carrier compatibility in 2026

The Redmi Note 4X has a key advantage:

• 📡 Support for VoLTE (voice) 4G) and ViLTE (video calls on the 4G) — works with most Russian operators (MTS, Beeline, Tele2, MegaFon).
• 🌐 A wider list of supported LTE-bands (Band) 1/3/5/7/8/38/40 band 1/3/5/7/8/38/40 note 4, but with better optimization).
• 📞 Redmi Note 4 on Helio X20 VoLTE is unstable (frequent call interruptions).

In 2026, this is critical: many carriers are gradually shutting down 2G/3G networks, and without VoLTE, calls may stop working.If you buy a smartphone for everyday use, the Note 4X is the only sensible choice.

⚠️ Note: Check your carrier’s range support before buying! For example, Yota and some virtual carriers (like Tinkoff Mobile) may not work on the Redmi Note 4 due to the absence of the Band 20 (800 MHz).

6.Software: Which versions of MIUI and Android are supported?

The official support for both smartphones is long overdue, but there are nuances:

• 🤖 Redmi Note 4: The latest official firmware — MIUI 11 based on Android 7.0 Nougat. Unofficially you can install LineageOS 16 (Android 9).
• 🤖 Redmi Note 4X: last-of-the-line firmware — MIUI 12.5 is based on Android 7.0 Nougat, but there are unofficial Android 10 ports (like Havoc) OS).

The challenges you will face in 2026 are:

• ❌ Lack of support for modern versions of WhatsApp, Telegram and banking applications (requires Android 8.0)+).
• ❌ No Widevine. L1 — Netflix, YouTube and Kinion will only be available on the 480p.
• ❌ Google Play Services issues (some apps may not be updated).

Decisions:

1. Install custom firmware (e.g. Pixel Experience based on Android 10).
2. Use alternative versions of apps (e.g. Telegram X or F-Droid).
3. Buy a smartphone only for secondary tasks (for example, as a backup or for a child).

7. Design, case and extra chips: is there a difference?

The models are almost identical, but there are several differences:

• 🎨 Redmi Note 4X Available in black with matte back panel (the Note 4 only glossy options).
• 🔊 The speaker in the Note 4X a little louder (on the 5-10%) by better adjusting the amplifier.
• 📱 Touch glass: in Note 4X It is a glass that is stronger (but not Gorilla Glass).

Both models have:

• 🔘 Physical navigation buttons (without gesture support).
• 📷 Double. LED-flash (but without temperature correction).
• 🔌 MicroUSB connector (no Type-C).
• 🎧 3.5 mm audio jack (sound quality is mediocre, it is better to use Bluetooth headphones).

If you care about design, look for the Redmi Note 4X in black, which is less stained and more premium, and it also has less of a touchscreen detachment problem (a common defect in the Note 4 after 2-3 years of use).

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The Redmi Note 4X is the best choice for everyday use in 2026 thanks to the Snapdragon 625, VoLTE support and longer autonomy.The Redmi Note 4 will be suitable only for budget tasks or as a spare smartphone.

FAQ: Frequent questions about Redmi Note 4 note 4X