XIaomi Black Shark 4 128GB | Unlocked
Xiaomi Black Shark 4 128GB Technical Specifications
Year of release: 2021
Display: 6.67-inch Super AMOLED, 2400 × 1080 pixels, 144Hz refresh rate, HDR10+
Processor: Qualcomm Snapdragon 870, octa-core (1x3.2 GHz Kryo 585 + 3x2.42 GHz + 4x1.80 GHz)
Storage: 128GB UFS 3.1 internal storage, non-expandable
RAM: 6GB
Battery: 4500 mAh, 120W fast charging (100% in ~17 min)
Design
The Xiaomi Black Shark 4 has a bold, gaming-focused design with a sturdy aluminum frame and a glass back. Its unique aesthetic includes RGB lighting and magnetic pop-up gaming triggers for enhanced control during gameplay. The device feels solid and is ergonomically built for long gaming sessions, with a side-mounted fingerprint scanner for quick access.
Display
Equipped with a 6.67-inch Super AMOLED display, the Black Shark 4 delivers vibrant visuals, deep blacks, and a peak brightness of 1300 nits. It supports a 144Hz refresh rate and 720Hz touch sampling rate, offering ultra-smooth performance and extremely responsive touch input — ideal for competitive gaming. HDR10+ support ensures high dynamic range visuals.
Performance
Powered by the Snapdragon 870, the Black Shark 4 delivers flagship-level performance suitable for demanding games and multitasking. Coupled with UFS 3.1 storage and fast LPDDR5 RAM, the phone provides swift app loading, fluid gaming, and efficient heat management thanks to its "Sandwich" liquid cooling system.
Software and Connectivity
Running on JoyUI (based on MIUI), the Black Shark 4 provides a customized Android experience with gaming optimizations and features like Shark Space for enhanced performance. It supports 5G, Wi-Fi 6, Bluetooth 5.2, NFC, and has a 3.5mm headphone jack — a rarity in modern smartphones — making it highly versatile for both gamers and general users.
- Description
- Product Condition
Xiaomi Black Shark 4 128GB Technical Specifications
Year of release: 2021
Display: 6.67-inch Super AMOLED, 2400 × 1080 pixels, 144Hz refresh rate, HDR10+
Processor: Qualcomm Snapdragon 870, octa-core (1x3.2 GHz Kryo 585 + 3x2.42 GHz + 4x1.80 GHz)
Storage: 128GB UFS 3.1 internal storage, non-expandable
RAM: 6GB
Battery: 4500 mAh, 120W fast charging (100% in ~17 min)
Design
The Xiaomi Black Shark 4 has a bold, gaming-focused design with a sturdy aluminum frame and a glass back. Its unique aesthetic includes RGB lighting and magnetic pop-up gaming triggers for enhanced control during gameplay. The device feels solid and is ergonomically built for long gaming sessions, with a side-mounted fingerprint scanner for quick access.
Display
Equipped with a 6.67-inch Super AMOLED display, the Black Shark 4 delivers vibrant visuals, deep blacks, and a peak brightness of 1300 nits. It supports a 144Hz refresh rate and 720Hz touch sampling rate, offering ultra-smooth performance and extremely responsive touch input — ideal for competitive gaming. HDR10+ support ensures high dynamic range visuals.
Performance
Powered by the Snapdragon 870, the Black Shark 4 delivers flagship-level performance suitable for demanding games and multitasking. Coupled with UFS 3.1 storage and fast LPDDR5 RAM, the phone provides swift app loading, fluid gaming, and efficient heat management thanks to its "Sandwich" liquid cooling system.
Software and Connectivity
Running on JoyUI (based on MIUI), the Black Shark 4 provides a customized Android experience with gaming optimizations and features like Shark Space for enhanced performance. It supports 5G, Wi-Fi 6, Bluetooth 5.2, NFC, and has a 3.5mm headphone jack — a rarity in modern smartphones — making it highly versatile for both gamers and general users.
Our Product Grading
Understand our grading system and shop with total confidence.
Device Grades Explained
Fair
- ✔ Visible signs of wear (scratches/scuffs)
- ✔ Fully functional and tested
- ✔ 80%+ battery health
- ✔ Generic packaging with charging cable
- ✔ 12-month warranty
Very Good
- ✔ Minor cosmetic signs of use
- ✔ Fully functional and M360 Diagnostics tested
- ✔ 80%+ battery health
- ✔ Generic packaging with cable
- ✔ 12-month warranty
Premium Refurbished
- ✔ Like-new condition (no visible wear)
- ✔ M360 Diagnostics certified (70+ point check)
- ✔ 85%+ battery health guaranteed
- ✔ Generic packaging with cable
- ✔ 12-month warranty
Quick Grade Comparison
| Grade | Cosmetic Condition | Battery | Packaging | Warranty |
|---|---|---|---|---|
| Fair | Moderate wear | 80%+ | Generic | 12 months |
| Very Good | Minor signs of use | 80%+ | Generic | 12 months |
| Premium Refurbished | Like new | 85%+ | Generic | 12 months |
| New | Brand new | 100% | Original | Manufacturer |
FAQ's
Are the Refurbished products unlocked?
Yes. All of our refurbished iPhones, iPads, Apple Watches and all other refurbished tech are fully unlocked and ready to use with any UK or international network (unless specifically stated otherwise on the product page).
What’s the battery health guarantee?
Every device we sell is tested to ensure it has a minimum of 80% battery health. In most cases, our devices exceed this. If a battery falls below our standard, it is replaced before the device is listed for sale.
