Please allow ~2-3 weeks to dispatch for quality control. Product images are for illustrative purposes only and may contain AI-generated content; they may not represent the final product you receive. Products are subject to the cosmetic grading policy detailed here.
If you are ordering a device that does not include a Windows 11 licence as standard, please check Microsoft's minimum system requirements to confirm if it can be upgraded later should you wish to do so.




ZTE Blade A51 - Certified Refurbished Smartphone
Experience reliable everyday connectivity with the ZTE Blade A51, featuring a Unisoc SC9863A octa-core processor, 2GB LPDDR4X RAM, 32GB or 64GB eMMC 5.1 storage, and a generous 6.52-inch IPS LCD display with 720 x 1600 pixel HD+ resolution, all packaged in a compact design measuring 166.5 x 75.6 x 8.5 mm and weighing just 173.7 grams. This certified refurbished smartphone from Reboot IT delivers essential smartphone functionality at an exceptional value, perfect for staying connected without breaking the bank.
Practical Everyday Use
The ZTE Blade A51 is ideally suited for users seeking a dependable device for essential tasks. Whether you're making calls, sending messages, browsing social media, checking emails, or using navigation apps, this smartphone handles daily communications with ease. The large screen makes it excellent for video calls with family and friends, whilst the dual camera system captures everyday moments. It's particularly well-suited for first-time smartphone users, students on a budget, or as a reliable backup device for work and travel.
Key Features and Benefits
The 6.52-inch display provides ample screen real estate for comfortable viewing, making everything from web browsing to video streaming more enjoyable. With 4G LTE connectivity across multiple bands and dual SIM capability, you'll stay connected wherever you go. The device includes modern conveniences like NFC for contactless payments, USB Type-C charging with OTG support, and a rear-mounted fingerprint sensor for quick, secure access. The 13MP dual camera system with LED flash and HDR ensures you can capture clear photos and 1080p video, whilst the expandable storage supports up to 128GB via microSD card, giving you plenty of room for apps, photos, and media.
Essential Technical Specifications
- Display: 6.52-inch IPS LCD, 720 x 1600 pixels, 269 ppi density
- Processor: Unisoc SC9863A octa-core (4x1.6 GHz + 4x1.2 GHz Cortex-A55)
- Memory: 2GB LPDDR4X RAM with 32GB or 64GB eMMC 5.1 storage
- Cameras: 13MP + 2MP rear dual camera system, 5MP front camera
- Connectivity: 4G LTE, Wi‑Fi 802.11 b/g/n, Bluetooth 4.2, NFC, GPS
- Operating System: Android 11 (Go edition)
- Dimensions: 166.5 x 75.6 x 8.5 mm
- Weight: 173.7 grams
- Ports: USB Type-C 2.0 with OTG, 3.5mm headphone jack
- Security: Rear-mounted fingerprint sensor, accelerometer, proximity sensor
Operating System Considerations
Running Android 11 (Go edition), this device benefits from an operating system specifically optimised for efficient performance on entry-level hardware. The Go edition launches apps up to 20% faster whilst consuming less data and storage space, making it ideal for budget-conscious users. However, it's worth noting that the Go edition includes lightweight versions of Google apps with some feature limitations, such as restricted multitasking and the absence of split-screen functionality, in order to maximise performance on devices with 2GB RAM.
Understanding Refurbished Grades
At Reboot IT, we offer two cosmetic grades to suit different preferences and budgets. Excellent grade smartphones appear virtually like new with only very minor wear—screens may have light, shallow scratches that won't catch on a fingernail, and the body shows minimal signs of use. Good grade devices are fully functional and tested but display more visible signs of previous use, such as body scratches, possible small paint chips, or light screen scratching from regular wear. Regardless of grade, every device undergoes the same rigorous testing process to ensure complete functionality.
Verified Reboot Refurbished Quality
Every ZTE Blade A51 sold by Reboot IT has been meticulously tested across all features and functions to ensure it meets our exacting standards. Our comprehensive testing process evaluates every aspect of the device, from screen responsiveness and camera quality to connectivity performance and sensor accuracy. Since 2001, Reboot IT has been an industry expert in refurbishing technology, utilising cutting-edge diagnostic software and thorough testing protocols to verify each unit's performance. All devices are verified refurbished through Reboot IT's rigorous multi-point inspection process, ensuring you receive a smartphone that performs reliably day after day.
Warranty and Quality Assurance
This certified refurbished ZTE Blade A51 is sold by Reboot IT and comes with a comprehensive 1-year warranty for your complete peace of mind. Our warranty covers all functional aspects of the device, ensuring you're protected against defects in workmanship. Every unit has been professionally refurbished, thoroughly cleaned, and factory reset to provide you with a fresh start. The device is factory unlocked and compatible with Optus, Telstra, and Vodafone networks across Australia.
Make the Smart Choice Today
Why pay full price for new when you can enjoy exceptional value with a certified refurbished smartphone? The ZTE Blade A51 delivers all the essential features you need for modern mobile connectivity at a fraction of the cost. Choosing refurbished technology is not only smart for your wallet but also better for the environment, reducing electronic waste whilst providing you with a fully functional device. Add this reliable, thoroughly tested smartphone to your cart today and experience the Reboot IT difference.
Camera |
Touch Screen |
Wi-Fi Capable |
Features | Bluetooth Enabled|Camera |
Model | Blade A51 |
Contract | Without Contract |
Resolution | 720x1600 |
Processor | Unisoc SC9863A 1.2 GHz |
Model Number | Blade A51 |
Processor Model | Unisoc SC9863A 1.2 GHz |
Colour | Black |
Ram | 2 GB |
Network | Unlocked |
Brand | ZTE |
Memory Card Type | microSD |
Camera Resolution | 8 MP |
Screen Size | 6.5 in |
Storage Capacity | 32 GB |
Sim Card Slot | Dual SIM |
Operating System | Android |
Connectivity | 4G|Bluetooth|Wi-Fi |
Processor Speed | 1.6 GHz |
Style | Bar |
Manufacturer Warranty | 1 Year |
Refurbished Computers - Cosmetic Grading Guide
Our supplier's refurbished hardware is typically graded either "Excellent" or "Good", however, some legacy products were graded under a letter grading system (A, B, C). Please find the definitions for each grade below and contact us if you're uncertain of a device's grade.
Used Smartphone / Refurbished Mobile Phones
"Excellent" Grade
Devices in this category appear like new, with very minor wear. Expect light or fine scratches on the screen that are shallow enough not to catch on a fingernail. The edge around the glass is virtually flawless, save for possible light scratching around the power port. The back plate may show light/fine scratches, including on the Apple logo, with any discoloration being minimal.
"Good" Grade
These devices are characterized by being fully tested and functional even if they have body scratches, minor paint chips, or a small hairline crack on the screen. Screens are free from dead pixels but may exhibit slight scratching from moderate use.
Refurbished Desktops, Laptops and Monitors
"Excellent" Grade - Laptops
Reserved for units that show barely any signs of previous use, these laptops may exhibit very minor scuffing or abrasions, associated only with minimal standard use. The keyboards show light wear, and importantly, the screens are pristine, free from any scratches, cracks, chips, dead pixels, dark spots, discoloration, or blemishes.
"Excellent" Grade - Desktops
Desktop PCs in the "Excellent" grade category are free from deep scratches, cracks, paint chips, or any broken/missing pieces, ensuring a sleek and almost-new aesthetic.
"Excellent" Grade - Monitors
"Excellent" grade is reserved for units that show evidence of very little to no previous use. Any wear on an "Excellent" Display, including housing/frame and/or external surfaces (i.e. Frame) is associated with standard minimal use. "Excellent" units may have minor scuffing and / or minor abrasions on plastics with from standard light previous use."Excellent" Displays will feature no scratches, cracks, chips, dead pixels, dark spots, discoloration or blemishes. Units will only feature the standard minimal wear and tear that is associated with a used unit.
"Good" Grade - Laptops
"Good" laptops may feature one or several small dings or dents on covers and / or small paint chips on the surface or small hairline cracks in the bezel. Laptop screens may feature uneven light diffusion in screen and may feature subtle blemishes. "Good" Laptops will not feature cracks screens but may feature slight scratching, dead pixels or white spots on the screen.
"Good" Grade - Desktops
"Good" grade desktops may have light scratches on external body and may feature more excessive unit housing and/or external case wear than "Excellent" units, including wear on case / lid. "Good" PCs may feature one or several small dings or dents on covers and / or small paint chips on the surface.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include scratches on body, small paint chips, minor cracks on body, loose and/or wobbly bases. "Good" Display screens may feature uneven light diffusion in screen and may feature subtle to moderate blemishes. "Good" Displays will not feature cracks on screens but may feature slight scratching on screen surfaces from moderate use or wear, dead pixels or white spots on the screen.
Legacy letter grading
Used Smartphone / Refurbished Mobile Phones
A Grade
- No chips, scratches or cracks on the front glass and housing
- No missing or alternative parts
- No sign of liquid damage
- Battery cannot be swollen
B Grade – Same as A Grade except:
- May have light scuffs but no chips or cracks
- Light scratches on housing or front glass
C-Grade – Same as B Grade except:
- Unlimited long shallow scratches on the front glass
- No chips or cracks on the front glass
- Unlimited scratches, chips/dents on back cover housing and corners
- Minor cracks allowed
- Customized housing and aftermarket covers allowed
Refurbished Desktops, Laptops and Monitors
A-Grade
- Overall excellent to very good cosmetic condition. Some may be pristine, others may have light scratches or minor blemishes
- Laptops may have some shiny areas around the keyboard such as the space bar, touchpad or touchpad buttons
- Keyboard keys will be in excellent condition
- Laptop and monitor screens will be blemish free
- Cosmetic blemishes will not impact the overall functionality or performance of the device
B-Grade
- Will have some cosmetic blemishes that include scratches and/or other imperfections
- Minor scratches and dents on the housing
- Laptops may have shiny keys or shiny surfaces around the keyboard however all characters will be legible
- Laptop and monitors screens will have imperfections such as minor scratches, minor chips and/or white spots. There will be no cracking on the screen
- Have the same warranty as A Grade
- Pricing will be cheaper than A Grade
C-Grade
- Same as B-Grade except may have unlimited scratches/blemishes on the screen
- May have cracks/chips or dents on the housing
- Have the same warranty as A Grade
- Pricing will be cheaper than B Grade