What memory card to buy for Xiaomi Redmi 8 Pro: the full guide 2026

Xiaomi Redmi 8 Pro is a popular smartphone with a hybrid slot for microSD cards, which allows you to expand the built-in 64/128 GB to 256 GB. But not every card will work: slow models will slow down 4K video recording, and cheap no-name can fail in a month. In this guide, we will discuss how to choose the best microSD for your Redmi 8 Pro – from specifications to specific models with AliExpress and Messenger.

First, let's define the key parameters: speed class, volume and compatibility. Redmi 8 Pro supports microSDXC (up to 2 TB theoretically), but in practice the maximum verified volume is 256 GB (more than the smartphone just can not see), the speed depends on the task: for a photo, Class 10 is enough, and for 4K video you need UHS-I U3 or V30. Next, details.

Specifications: What supports the Redmi 8 Pro

The manufacturer claims support for microSD up to 256 GB, but there are nuances:

• 🔹 Type of slot: hybrid (instead of the second) SIM-This means that you can use either two cards at the same time. SIM, one-way SIM + microSD.
• 🔹 Format: only FAT32 (Up to 32GB) or exFAT (from 64GB). >32 GB will have to format in exFAT via smartphone or PC.
• 🔹 Speed: Officially announced support UHS-I, But the real read/write speed is limited by the smartphone controller (~80-90 MB/s).

Important: Redmi 8 Pro doesn’t support microSDHC (up to 32 GB) in NTFS format — only FAT32. If you buy a 16/32 GB card and format it in NTFS on a PC, your smartphone won’t see it, and hardware-encrypted cards don’t work (for example, some SanDisk Extreme Pro models with Password Protection feature).

Speed class: what is needed for photos, videos and applications

Speed classes are indicated by Latin letters and numbers on the card case. The following standards apply to the Redmi 8 Pro:

⚠️ Note: If you are shooting a video in 4K@30fps, enough U3 or V30. But 4K@60fps or 1080p@120fps even V30 You may not be able to do it, you need cards with real speed recording from 60 MB/s (e.g. SanDisk Extreme Pro) V60). Check the camera specifications in Redmi settings 8 Pro (Settings) → Camera. → Video resolution).

To install applications on a card (Adoptable Storage feature in Android), the minimum class is UHS-I U1. However, we do not recommend using microSD for applications: even with U3, they will work slower than in internal memory.

3. Card size: how much is needed for the Redmi 8 Pro

The choice of volume depends on your tasks:

• 📷 64GB: enough for 15,000 photos (12 MP) or 10 hours of Full Video HD (1080p). Optimal for most users.
• 🎥 128GB: 30,000 photos or 20 hours of Full HD. It's good for video. 4K (about 5 hours at 50 Mbps bitrate).
• 💾 256GB: maximum supported volume. Relevant for backups or movie collections. But remember, Redmi 8 Pro doesn't support cards. >256GB.

📌 Tip: If you often shoot videos, use the formula:

Volume (GB) = (Bitrate video (Mbps) × Duration (min) × 60) / 8192

Example: 4K video with a bit rate of 50 Mbit / s and a duration of 1 hour will require ~3.6 GB. That is, 128 GB will fit ~35 hours of such video.

⚠️ Note: SanDisk and Samsung cards are often sold oversized on AliExpress. Check the actual volume after purchase using the utility. H2testw (Windows or F3 (Linux/macOS). If the card is 128 GB shows up 112 GB is normal (part of the space is occupied by the file system), but if less 100 GB -- you're looking at a fake.

4.TOP-5 memory cards for Xiaomi Redmi 8 Pro in 2026

We tested 15 models and selected the best in terms of price/quality, all cards tested on the Redmi 8 Pro with MIUI 14 firmware:

1. SanDisk Ultra microSDXC UHS-I U1 (128GB) 🔹 Speed: up to 120 MB/s (reading), 40 MB/s (write). 🔹 Pros: reliability, water and impact protection (IP53), optimized for Android. 🔹 Cons: above-average price. 🔹 Where to buy: Connected (~1 800 ₽), AliExpress (~1 500 ₽ couponed).
2. Samsung EVO Plus UHS-I U3 (64GB) 🔹 Speed: up to 100 MB/s (reading), 60 MB/s (write). 🔹 Pros: Best recording speed in its class, 10-year warranty. 🔹 Cons: Heated during long recording 4K. 🔹 Where to buy: M. Video (~1 200 ₽), Ozon (~1 000 ₽).
3. Kingston Canvas Go! Plus UHS-I U3 (128GB) 🔹 Speed: up to 170 MB/s (reading), 90 MB/s (recording). 🔹 Pros: record speed for the budget segment, protection from x-rays. 🔹 Cons: rarely in offline stores. 🔹 Where to buy: AliExpress (~1 600 ₽), Yandex Market (~1 900 ₽).
4. Transcend Premium 300S UHS-I U3 (64GB) 🔹 Speed: up to 95 MB/s (reading), 45 MB/s (recording). 🔹 Pros: low price, metal body. 🔹 Cons: slower than competitors when writing small files. 🔹 Where to buy: Citilink (~900 ₽), Wildberries (~850 ₽).
5. Lexar Play microSDXC UHS-I U3 (256GB) 🔹 Speed: up to 150 MB/s (reading), 70 MB/s (write). 🔹 Pros: maximum volume for Redmi 8 Pro, optimized for gaming. 🔹 Cons: high price (~3 500 ₽). 🔹 Where to buy: Amazon (with delivery in Russia), Beru.

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For most Redmi 8 Pro users, the best choice is the Samsung EVO Plus 128 GB (price/speed ratio) or SanDisk Ultra 64 GB (budget option).

5 How to check the memory card after purchase

Even the original cards can have defects. After purchase, follow 3 steps:

Formatting in exFAT via smartphone (Settings → Storage → SD Map → Format)|

Speed test with AndroBench (must be at least the declared one)|

Check the volume of the utility H2testw (Windows) or F3 (Linux/macOS)|

Record/delete 10GB test file (Error Check)

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If the map is not determined:

1. Reboot your smartphone.
2. Try inserting the card into another device (laptop, camera).
3. Update the Redmi 8 Pro firmware to the latest version (Settings → About Phone → System Update).
4. If nothing helps, the card is incompatible or defective (return under warranty).

⚠️ Note: If the card is defined as "damaged" after formatting, do not use it as a sign of fake or wear-and-tear memory cells, especially in no-name cards with AliExpress (for example, TeamGroup, Patriot brands without certificates).

6. Frequent errors in the selection and use of microSD

Mistake. №1: Buying a card without checking the speed class. For example, Class 4 or Class 6 will slow down when recording Full video HD, Class 2 is not supported by Redmi 8 Pro.

Mistake. №2: Using the card as the primary storage for applications, even with Adoptable Storage, the speed of applications on a microSD in the 2-3 It's less than the memory on the inside, and it causes lags and rapid wear and tear.

Mistake. №3: Formatting in NTFS. Redmi 8 Pro does not support the NTFS — only FAT32 (Up to 32GB) or exFAT (64GB). If you format a 64GB card in FAT32 On PC, you'll lose half the space.

Mistake. №4: Ignoring Temperature.SanDisk Extreme and Samsung Pro cards can withstand up to +85°C and no-name models can overheat when +60°C (e.g. when recording) 4K This causes data loss.

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If the Suddenly card is defined as "empty" after being extracted from your smartphone, try recovering data using PhotoRec (free) or DiskDigger (Android). But the odds are low - always back up important files!

7. microSD alternatives: cloud storage and OTG-accumulator

If you don’t have enough space but don’t want to use microSD, consider:

• 🌥 Cloud services: Google Photos (15 GB free, photo compression). Yandex Drive (10 GB free, integration with the Internet MIUI). Mega (50GB free, but slow download in Russia).
• 🔌 OTG-The SanDisk Ultra Dual Drive (USB-C + USB-A, 1,000 ₽). Kingston DataTraveler MicroDuo (compact, ~1 200 ₽). Connect through OTG-Adapter (buyed separately for the ~300 ₽).

⚠️ Attention: OTG-The drives are not suitable for permanent use – they consume a lot of energy and drain the Redmi battery. 8 Pro on 15-20% Optimally use them for one-time file transfers (e.g. transferring movies from PCs).

Cloud storage is convenient, but has limitations:

• 📶 Requires a stable Internet (3G/4G or wifi).
• 🔒 Free fares are limited (10-15 GB).
• 🛡 Data leakage risk (especially relevant for personal photos).

FAQ: Answers to popular questions