Budget smartphone Xiaomi Redmi Note 9 still remains one of the most discussed gadgets in the segment under 15,000 rubles, despite the release of new models. Its popularity is explained by its balanced characteristics: MediaTek Helio G85 processor, high-capacity battery 5020 mAh, and a quadruple camera with the main module on 48 MP. But how justified are the rave reviews, and what problems do users encounter after 1–2 years of use?

We analyzed hundreds of reviews on Yandex.Market, Wildberries, AliExpress and thematic forums (including 4PDA And Mi Community) to highlight real advantages and hidden disadvantages, about which sellers are silent. The article contains honest assessments of the owners, comparison with competitors (Samsung Galaxy M21, Realme 6i), as well as tips on how to extend the life of your device.

Specifications Redmi Note 9: what really matters

On paper Redmi Note 9 looks like the perfect budget phone: 6.53-inch IPS screen with permission 2340×1080, 8-core processor, up to 6 GB RAM And 128 GB memory (with microSD support). But in reality, not everything is so smooth. For example, many users note that The screen is covered with protective glass Gorilla Glass 5, but at the same time oleophobic coating wears off in 3–4 months, and fingerprints remain even after wiping.

Particular attention is paid in the reviews productivity. Processor Helio G85 copes with everyday tasks (social networks, YouTube, light games), but in PUBG Mobile or Genshin Impact starts at high settings slowdowns and overheating. At the same time Redmi Note 9 Pro with Snapdragon 720G shows itself to be much more stable - the price difference of ~2,000 rubles is often justified.

  • 🔋 Battery 5020 mAh: lasts 1.5–2 days with moderate use, but fast charging 18W not included in the basic package (must be purchased separately).
  • 📷 Camera 48 MP: shoots well during the day, but appears at dusk noise and blur (even with the mode Night Mode).
  • 🎵 Speakers: There is stereo sound, but there are practically no bass frequencies - it is better to use headphones for music.
  • 📡 Communication: reception problems 4G in basements and remote areas (especially the operator Tele2).
📊 Which parameter is more important for you when choosing a smartphone?
  • Performance
  • Camera
  • Opening hours
  • Design
  • Price

Real reviews from owners: top 5 pros and cons

To get an objective picture, we collected reviews from users who use Redmi Note 9 from 6 months to 2 years. It turned out that Most of the complaints are not related to the hardware, but to software optimization - especially after updates MIUI.

Among main advantages the owners highlight:

  • 💰 Price/quality: for 12–14 thousand rubles this is one of the best options (competitors - Realme Narzo 20 And Poco M3).
  • 🔋 Autonomy: with active use (5-6 hours of screen time) it lasts for a full day, and in standby mode – up to 3 days.
  • 🛠️ Maintainability: It’s easy to find spare parts (screen, battery, cameras) and replacement technicians.

But there is also serious shortcomings, which are often kept silent:

  • 🐢 Brakes in MIUI: after updating to MIUI 13/14 many people complain about Freezes when multitasking and slow animation.
  • 📉 Performance drop: after a year of use Redmi Note 9 starts to lag even in simple applications (for example, VKontakte or Google Maps).
  • 🔊 Sound problems: 10–15% of users develop wheezing in dynamics (can only be solved by replacement).
⚠️ AttentionNote: If you plan to use your smartphone to shoot video, please note that Redmi Note 9 does not support 4K@60fps recording - maximum 4K@30fps with strong heating of the case.
Parameter User rating (out of 5) Comments
Screen 4.2 The brightness is insufficient in the sun, but the colors are natural.
Performance 3.8 Suitable for everyday tasks, but not for heavy gaming.
Camera 3.5 Good only in good lighting, night mode is weak.
Autonomy 4.7 One of the best indicators in the budget.
Reliability 3.9 Frequent problems with speakers and oleophobic coating.

Comparison with competitors: Redmi Note 9 vs Samsung Galaxy M21 vs Realme 6i

To understand whether it's worth paying extra for alternatives, we compared Redmi Note 9 with two main competitors in the same price category. Samsung Galaxy M21 wins in quality AMOLED screen and optimization One UI, but loses in autonomy (6000 mAh battery, but less efficient Exynos 9611 processor).

Realme 6i, in turn, offers 90 Hz screen and faster Helio G90Tbut suffers from bad camera (the main module is only 48 MP, but with worse processing) and lack of NFC (which is critical for contactless payments).

Characteristics Redmi Note 9 Samsung Galaxy M21 Realme 6i
Processor Helio G85 Exynos 9611 Helio G90T
Screen IPS, 60 Hz AMOLED, 60 Hz IPS, 90 Hz
Battery 5020 mAh, 18W 6000 mAh, 15W 4300 mAh, 30W
Camera (main) 48 MP, f/1.8 48 MP, f/2.0 48 MP, f/1.8
Price (2026) ~13 000 ₽ ~15 000 ₽ ~14 000 ₽
💡

If you care AMOLED screen and stable firmware - choose Samsung M21. Better for gaming and smoothness Realme 6i. Redmi Note 9 optimal in terms of balance of price, autonomy and maintainability.

Typical problems and how to solve them: advice from owners

Even budget smartphones have typical “diseases” that appear over time. U Redmi Note 9 most often found:

  1. Overheating when charging or playing games - associated with ineffective cooling. Solution: Remove the case while charging and avoid gaming at maximum settings.
  2. Rapid battery drain after update MIUI. Solution: disable Automatic application updates And Background activity for unnecessary programs (Settings → Battery → Optimization).
  3. Wheezing in dynamics - usually caused by dust. Solution: blow out the speaker hole with compressed air (but not too much so as not to damage the membrane).

If the smartphone starts reboot spontaneously, this may be due to:

  • 🔋 Battery wear (check status via *#*#4636#*#*Battery information).
  • 📱 Damage to the firmware (resetting to factory settings or flashing via Mi Flash Tool).

Save contacts to Google account|Copy photos to PC/cloud|Record application passwords|Remove SIM and SD card-->

⚠️ Attention: Do not use Fastboot mode for firmware, if you are not sure of your actions, this can lead to "briku" (complete inoperability) of the device. It is better to contact a service center.

Camera reviews: should you expect high-quality photos?

Camera Redmi Note 9 - one of the most controversial aspects. In the daytime, the pictures turn out to be detailed, with good color rendition, but MIUI processing algorithms often overcook HDR, causing the sky to appear unnaturally blue and shadows to lose detail. At dusk and at night, the quality drops sharply - even with the Night Mode the photos are noisy.

The video is shot in Full HD@60fps And 4K@30fps, but stabilization doesn't work well — the nameless gyroscope cannot cope with hand tremors. For comparison, Samsung Galaxy M21 Shoots video more smoothly, although not 4K.

  • 📸 Main camera 48 MP: good for social media, but not for print.
  • 🌃 Night mode: Only works with static objects (people in motion are blurry).
  • 🔍 2 MP macro lens: practically useless - shooting from a distance of 4 cm gives severe distortion.
  • 👥 Front camera 13 MP: Strongly smoothes the skin, but does not cope well with contrasting lighting.
Examples of photos from Redmi Note 9

During the day, the camera shows good detail, but when zoomed in, noise is visible on uniform surfaces (for example, the sky or walls). At dusk, aggressive anti-aliasing kicks in, causing fine details to be lost. Night mode helps, but only if you are perfectly still.

Is it worth buying Redmi Note 9 in 2026?

On the secondary market Redmi Note 9 can be found for 8–12 thousand rubles, which makes it an attractive option for those looking for an inexpensive smartphone “for a year or two.” However, it is worth considering:

  • Pros of buying used:
    • Low price compared to new models.
    • Ease of repair (parts are cheap and common).
    • Support MIUI until 2026 (security updates).
  • Cons:
    • High risk of purchasing a device with worn out battery (check via AccuBattery).
    • Outdated Helio G85 Can't handle modern games anymore.
    • No official support Android 13+ (latest version - Android 12).

If you need a smartphone only for calls, social networks and light tasks, then Redmi Note 9 could still be a good choice. But for gaming, video shooting or long-term use, it is better to consider newer models - for example, Redmi Note 12 or Poco X5.

  1. Battery status (Settings → Battery → Status).
  2. Operation of all cameras (especially macro lenses).
  3. No wheezing in the speakers (play bass frequencies).
  4. Availability of original box and receipt (for warranty).
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FAQ: answers to frequently asked questions about Redmi Note 9

Is it possible to install Android 13 on Redmi Note 9?

Officially - no, the latest version for this model is Android 12 with MIUI 14. However, there are unofficial firmwares (for example, LineageOS 20 or Pixel Experience), but installing them requires unlocking the bootloader and may void your warranty.

How to enable developer mode?

Go to Settings → About phone and press 7 times MIUI version. After that in the menu Settings the item will appear For developers.

How much does it cost to replace a screen?

The cost of the original display with replacement at a service center is: 4,000–6,000 rubles. On Avito or in small workshops you can find it cheaper (2,500–3,500 rubles), but there is a risk of running into a non-original matrix with worse color rendition.

Does Redmi Note 9 support wireless charging?

No, this model does not have a wireless charging module. Maximum - reverse charging via cable (can charge other devices via OTG).

How to speed up your smartphone?

Several working methods:

  1. Disable animation: Settings → For developers → Animation scale (set to 0.5x).
  2. Limit background activity: Settings → Battery → Optimization → Manual control.
  3. Install light firmware (for example, MIUI Lite or Havoc OS).