Samsung Galaxy A21s (SM-A217F) — Unlocked 4G Android Smartphone
An unlocked Samsung handset with a 48MP quad-camera system, 32GB of expandable storage and a large 6.5-inch display, backed by a 12-month Reboot IT warranty. A big battery and Samsung's One UI software make it a dependable everyday phone with a camera well above its class.
Key Benefits
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48MP quad-camera system — a high-resolution main sensor backed by ultra-wide, macro and depth lenses, so you get real framing options rather than one fixed view.
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5000mAh battery — a genuinely large cell that comfortably clears a full day and often stretches into a second for lighter users.
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Unlocked to any Australian carrier — use Telstra, Optus, Vodafone or any MVNO, and switch whenever a better plan comes along.
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Roomy 6.5-inch Infinity-O display — a tall 20:9 screen with a small camera cut-out rather than a wide notch, giving more usable area for video and reading.
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Expandable storage — 32GB internal plus a microSD slot, so photos, music and offline video do not compete for space.
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Samsung software and support — One UI is well established, familiar and works cleanly with Google services and Samsung accessories.
Performance in Use
The A21s is Samsung's take on a dependable everyday phone, and it shows in the details that matter day to day. The Exynos 850 octa-core processor is efficiency-focused rather than fast, which pairs well with the 5000mAh battery — a full day of calls, messaging, maps, music and social media is routine, and many users end the day with meaningful charge left.
The camera is the reason to choose this over a plain entry-level handset. The 48MP main sensor captures detail well in daylight, the 8MP ultra-wide lets you fit a whole group or a landscape into frame without stepping back, and the macro lens handles close-up work. Portrait shots use the depth sensor for a natural background blur. For everyday photography — family, travel, marketplace listings, work documentation — it is a capable setup.
Set expectations sensibly on raw speed. This is not a phone for demanding 3D gaming or heavy multitasking across large applications, and the HD+ panel is a step below the sharpness of a flagship. What it does exceptionally well is last all day, take good photos, and work reliably on any Australian network — which is what most people actually need from a phone.
Technical Specifications
| Model |
Samsung Galaxy A21s (SM-A217F) |
| Storage |
32GB internal, microSD expandable |
| Display |
6.5-inch PLS TFT Infinity-O, HD+ (720 x 1600), 20:9 |
| Processor |
Samsung Exynos 850, octa-core |
| Rear cameras |
Quad: 48MP main + 8MP ultra-wide + 2MP macro + 2MP depth |
| Front camera |
13MP |
| Battery |
5000mAh, fast charging support |
| Network |
4G LTE, unlocked |
| Wireless |
Dual-band Wi-Fi, Bluetooth |
| Ports |
USB Type-C, 3.5mm headphone jack |
| Security |
Rear-mounted fingerprint sensor |
| Operating system |
Android with Samsung One UI |
| Colour |
Black |
| Warranty |
12 months (30 days on battery) |
Is It Right For You?
| Best For ✓ |
Not For ✗ |
Everyday calls, messaging and social media
Users who want strong battery life above all
Casual photography with real framing options
Prepaid and carrier-switching customers
Students and first smartphones
A reliable work or backup handset
Anyone preferring Samsung's One UI
|
Demanding 3D mobile gaming
Professional or low-light photography
5G network coverage
Users wanting a Full HD or AMOLED panel
Heavy multitasking across large apps
Anyone needing the newest Android release
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Condition Grades
| A — Excellent |
Minimal signs of use. Screen free from scratches, cracks and dead pixels. Battery health 70% or above. Presents close to new. |
| B — Good |
Fully tested and functional. Screen free from dead pixels but may show light scratching. Housing may have scratches, small dents or paint chips. Battery health 50–70%. |
Battery health is measured at the point of testing. Batteries are consumable items and carry a 30-day warranty.
Frequently Asked Questions
Is this handset unlocked?
Yes. It is supplied unlocked and works with all major Australian carriers and the MVNOs that run on their networks. Insert your SIM and it will connect.
How good is the battery life?
The 5000mAh battery is one of this phone's strongest features. Paired with the efficient Exynos 850 processor, a full day of normal use is comfortable and lighter users often reach a second day.
Can I expand the storage?
Yes. Alongside the 32GB of internal storage there is a microSD card slot, which is the simplest way to add space for photos, video and music.
Does it support 5G?
No. The A21s is a 4G LTE device. It connects on 4G networks nationwide, which covers the large majority of Australian mobile data use.
What is included?
The handset is supplied with a compatible charging cable and power adapter. Original retail packaging, headphones and printed manuals are not included with refurbished stock.
Has previous owner data been removed?
Yes. Every handset is factory reset and data-wiped before grading and listing, so you set it up fresh with your own Google or Samsung account.
How is it shipped?
This item qualifies for free standard shipping within Australia, dispatched from our Melbourne facility.
12-Month Reboot IT Warranty
This handset is covered by a 12-month Reboot IT warranty. If a covered fault appears we repair, replace or refund — handled locally in Melbourne, not shipped offshore. Battery health is disclosed at the grade level above and carries a 30-day warranty, as batteries are consumable items.
Reboot IT has been refurbishing technology in Australia since 2001. Every handset is data-wiped and functionally tested across cameras, speakers, microphones, sensors, ports and connectivity before our technicians grade and list it. Free standard shipping applies within Australia. Questions before you buy? Contact our Melbourne team via reboot-it.com.au.