Apple iMac 21.5-inch 2.7GHz i5, 8GB RAM, 256GB SSD (Renewed) Review: Pros, Cons & Rumors Debunked

Apple iMac 21.5in 2.7GHz Core i5 (ME086LL/A) All In One Desktop, 8GB Memory, 256GB Solid State Drive, MacOS 10.12 Sierra (Renewed)

Experience powerful performance with the Renewed Apple iMac 21.5-inch: 2.7GHz Core i5, 8GB RAM, and lightning-fast 256GB SSD for smooth multitasking and quick startups.
Refurbished to like-new standards and backed by a 90-day warranty, this iMac blends sleek design with macOS Sierra for immersive visuals, crisp audio, and reliable daily computing.

The renewed iMac delivers a budget-friendly Apple desktop with SSD performance and a vibrant display.
Users commonly report smooth multitasking, quick boot times, and seamless Apple ecosystem integration.
Main drawbacks include non-genuine bundled peripherals and outdated macOS versions on certain units.
A minority of customers experience wrong hardware configurations or defective units, but these are covered by Amazon’s warranty.
This model suits general productivity and home use but may disappoint demanding gamers and professional editors.

Table of contents

Product Overview
Apple iMac 21.5in 2.7GHz Core i5 Review: Honest Findings
Positive Feedback & Highlights
Negative Reviews & Rumor Analysis
Who Should Consider Apple iMac 21.5in 2.7GHz Core i5?
Conclusion: Final Verdict

Product Overview

Pre-owned iMac with Core i5, 8GB RAM, and 256GB SSD through Amazon Renewed.
Inspected, tested, and backed by a 90-day supplier warranty; accessories may vary.

With the Amazon Renewed program, customers can access Apple hardware at reduced prices without sacrificing reliability. The 21.5-inch iMac (ME086LL/A) model is professionally inspected and restored to meet Apple’s original performance metrics, offering buyers a cost-effective desktop solution. This unit pairs a 2.7GHz Intel Core i5 processor with 8GB of DDR3 memory, striking a balance between speed and affordability.

Under the hood, this iMac is equipped with a 256GB solid state drive that dramatically improves system responsiveness. Compared to older HDD-based configurations, this SSD delivers near-instant boot times and rapid file transfers. The integrated Intel HD Graphics GPU supports up to a Full HD resolution on its 1920×1080 IPS display, making it suitable for everyday multimedia consumption, photo retouching, and general productivity tasks.

Upon delivery, users will find macOS Sierra pre-installed, providing foundational features and security updates available at the time of refurbishment. While the refurbished unit’s core hardware—display, processor, memory, and storage—aligns with Apple’s original specs, the bundled keyboard and mouse are often generic replacements rather than genuine Apple accessories. Buyers may notice slight visual and functional differences when pairing these peripherals during initial setup.

Packaging and accessory variations depend on the Amazon-qualified supplier, but most packages include protective foam inserts, power cables, and basic documentation. Each renewed iMac includes a 90-day supplier-backed warranty that covers hardware malfunctions, and buyers can purchase extended AppleCare or third-party protection plans to extend coverage. For an additional fee, some suppliers offer upgraded versions with larger SSDs or increased RAM.

Specifically, the Intel Core i5 processor in this model is a fourth-generation “Haswell” chip launched in 2013, featuring Turbo Boost up to 3.2GHz and support for Hyper-Threading. Though superseded by newer architectures, it remains competent for standard office applications and light content creation. Users looking for more future-proof performance might consider models with post-2017 Intel families or Apple’s M-series chips.

Notably, the 8GB of memory is soldered to the logic board, making post-purchase upgrades impossible on this 21.5-inch variant. Those needing additional RAM should select a 27-inch iMac with user-accessible SO-DIMM slots or purchase units configured with 16GB at the time of refurbishment. Similarly, while the 256GB SSD meets baseline needs, storage-hungry users may opt for external Thunderbolt drives or cloud storage solutions.

The iMac’s exterior features Apple’s classic silver aluminum finish and edge-to-edge glass façade. Though it offers a premium aesthetic, the glossy surface can reflect ambient light. Positioning the display perpendicular to bright windows helps minimize glare. Despite a 7.5-inch maximum depth, the thin 5mm edge profile saves desk space and creates a refined focal point in any workspace.

Apple iMac 21.5in 2.7GHz Core i5 Review: Honest Findings

Offers smooth performance for everyday tasks and light media creation.
May require OS upgrades and additional genuine accessories for optimal experience.

In practical use, the iMac delivers smooth multitasking and responsive application performance, largely thanks to its combination of a dual-core Intel Core i5 processor and a 256GB SSD. Routine tasks such as web browsing, email, and document editing run without noticeable lag, and switching between multiple open windows remains fluid. Users consistently report that the system feels snappy compared to similarly priced off-lease PCs equipped with traditional hard drives.

While basic photo editing tasks in apps like Photos or Pixelmator are handled adequately, more demanding workloads—such as processing batches of RAW images or editing 4K video—can push the iMac toward its performance ceiling. During prolonged multimedia or batch-export sessions, the all-in-one chassis can generate modest fan noise as the cooling system ramps up. However, temperatures remain within safe operating limits without thermal throttling.

The iMac includes a variety of I/O ports—four USB 3.0 Type-A slots, two Thunderbolt ports, an SDXC card slot, Gigabit Ethernet, and a 3.5mm headphone jack—supporting most common peripherals without the need for additional hubs. Wireless connectivity via Bluetooth 4.0 and 802.11ac Wi-Fi ensures stable pairing with keyboards, mice, and network access, although some users have reported occasional dropouts in heavily congested Wi-Fi environments.

Since renewed units often ship with macOS Sierra or Mojave pre-installed, buyers must plan for operating system updates to reach the latest security patches and software compatibility. Upgrading to High Sierra, Catalina, or newer macOS releases is free through the Mac App Store, but the process can take several hours and requires adequate internet bandwidth. Newer apps like Final Cut Pro, Office 365, or Creative Cloud’s applications may require macOS High Sierra or later.

Initial setup may be delayed by pairing generic peripherals or troubleshooting Boot Camp installations for Windows users. Those who rely on Magic Keyboard, Magic Mouse, or USB-C hubs occasionally encounter firmware compatibility issues, necessitating manual driver downloads from Apple’s support site. Once these minor hurdles are cleared, the overall experience aligns closely with that of a brand-new iMac.

Benchmark tests of the refurbished SSD units typically show sequential read speeds around 500MB/s and random read speeds near 20MB/s, representing a significant improvement over 100MB/s read rates on HDD-based alternatives. These numbers translate to smoother file operations, faster application installs, and brisk boot cycles that reinforce the perception of a responsive desktop environment.

The slim profile and integrated stand design measure 7.5 inches deep at maximum thickness, tapering to 5mm along the display’s edges. This industrial aesthetic, combined with the edge-to-edge Gorilla Glass panel, makes the iMac a modern centerpiece in both home and office settings. However, its sealed chassis means any internal upgrades or repairs must be handled by professional service providers.

Compared to budget Windows all-in-ones, this iMac generally offers more consistent performance and fewer preinstalled software annoyances. While many PCs advertise similar CPU and RAM specifications, they often suffer from less optimized driver support, inconsistent firmware updates, and lower build quality, making the renewed Apple desktop a compelling option for users seeking reliability and longevity.

Audio quality from the built-in stereo speakers suffices for conference calls, web videos, and casual music listening, though audiophiles may notice a lack of deep bass that new iMacs mitigate with dedicated amplifiers. The FaceTime HD camera and microphone perform well for video conferencing, providing clear images and stable voice pickup under standard lighting conditions.

Positive Feedback & Highlights

Customers love the display quality, SSD speed, and Apple device integration.
All-in-one design and compact footprint receive high marks for convenience.

Many reviewers rave about the 21.5-inch screen’s crisp and vibrant image quality, noting that colors pop and detail remains sharp across browsing, streaming, and photo editing applications. The 1080p IPS panel delivers consistent brightness and accurate color calibration, enhancing user satisfaction in creative and leisure scenarios alike.

The shift to a blazing-fast SSD stands out as a dramatic performance upgrade over HDD models. Reviewers report cutting boot times from over a minute down to under 20 seconds, with application launch times and file transfers feeling nearly instantaneous. This responsiveness extends to macOS updates, software installations, and working with large file archives.

Beyond raw performance, users appreciate how effortlessly the iMac syncs with iPhones and iPads via AirDrop, Handoff, and Continuity features. Photos, documents, and browser tabs transfer seamlessly between devices, speeding up workflows for those in the Apple ecosystem. This tight integration is frequently cited as a key differentiator that elevates the user experience above comparable Windows all-in-ones.

Reviewers also praise the iMac’s minimalist, cable-free setup. The single Thunderbolt power cable tucks neatly behind the display stand, reducing desk clutter while presenting a sleek, modern aesthetic. Rear-facing ports—USB-A, Thunderbolt, SDXC, and Ethernet—offer ample connectivity without requiring external docking stations.

Noise levels remain impressively low during everyday use. At typical CPU loads—browsing, document editing, and video streaming—the system’s fans are virtually silent. Even under moderate stress, the fan ramp is gradual and never intrusive, helping maintain a focused and comfortable workspace.

Some users cite the convenience of built-in headphone and microphone ports for quick audio connections during virtual meetings or podcast recording. The integrated stereo setup, while not studio caliber, offers clear mids and highs, making it adequate for basic audio production or video calls.

Another highlighted feature is the machine’s energy efficiency. Under light to moderate workloads, typical power consumption hovers around 60W, dropping into eco-friendly low-power modes when idle. This contrasts with many desktop PCs that may draw over 100W at idle, resulting in higher electricity bills over time.

Additionally, the glossy display surface, while offering vibrant colors, can reflect ambient light. Users report that positioning the iMac perpendicular to windows or bright light sources minimizes glare and maximizes comfort during extended sessions.

Negative Reviews & Rumor Analysis

Complaints about third-party keyboards and mice causing setup issues.
Reports of outdated macOS, incorrect configurations, and isolated DOA units.

On the downside, a notable portion of negative feedback revolves around non-Apple-branded peripherals included in the shipment, such as generic keyboards and mice that sometimes fail to pair cleanly or lack Apple’s multi-touch gestures. These mismatches trigger confusion during initial setup, and some customers have purchased official Magic devices to restore the expected Apple experience.

Another frequent gripe is encountering an outdated operating system—commonly macOS Sierra or Mojave—requiring users to manually navigate the Mac App Store or Apple’s website to download High Sierra, Catalina, or newer releases. The update process can be lengthy and occasionally yields compatibility warnings for certain applications, leading to rumors of “locked” or incompatible units.

Although rare, some buyers report dead-on-arrival (DOA) scenarios where the machine powers on but does not display video, emits error chimes, or fails to complete the startup routine. Such instances highlight the variable quality control across Amazon Renewed suppliers and underscore the importance of testing each component immediately upon receipt.

Mislabeling issues have also surfaced, with a few customers receiving HDD-based configurations instead of the advertised SSD models. These mix-ups often result from listing inconsistencies or inventory errors. While Amazon typically provides partial refunds or replacement units, processing times and customer service interactions can prolong resolution, fueling perceptions of a compromised buy.

Network connectivity issues are mentioned by a minority of reviewers, where Wi-Fi 802.11ac modules can malfunction due to outdated firmware. Resetting the SMC (System Management Controller) and NVRAM often resolves intermittent dropouts, but this advanced troubleshooting is not intuitive for first-time Mac users, leading to exaggerated claims of hardware failure.

Additionally, some buyers encounter difficulty installing Windows via Boot Camp, as older AMD or NVIDIA drivers may conflict with legacy partitions. Users report that updating Boot Camp Assistant and installing legacy driver packs from Boot Camp support pages generally resolves these compatibility errors, though the process requires patience and some technical knowledge.

Some customers have voiced frustration with Amazon’s return shipping requirements, such as repackaging the unit with the original materials and using specific courier services. Delays in receiving replacement units or refunds—particularly for international buyers—have contributed to rumors of poor warranty support. In reality, most exchanges are processed within one to two weeks, provided return labels and packaging guidelines are followed correctly.

Finally, persistent rumors of mass refurbishment scams often circulate in online forums, but these claims generally lack supporting evidence. Independent teardown bloggers have confirmed that Amazon Renewed suppliers adhere to Apple’s refurbishment standards, using genuine internal components and running full diagnostic routines. The few negative anecdotes typically arise from isolated oversights or shipping mishandles rather than systemic fraud.

Who Should Consider Apple iMac 21.5in 2.7GHz Core i5?

Ideal for students, remote workers, and casual Apple users.
Not suitable for heavy gaming or high-end professional workloads.

Prospective buyers in need of a reliable general-purpose desktop will find this renewed iMac particularly attractive. It excels at office productivity tasks—word processing, spreadsheet analysis, and email management—and supports popular educational and business software. The compact footprint and simple cable management suit dorm rooms, open-plan homes, and small home office setups.

Creative hobbyists working on light photo editing, graphic design, or casual video projects can leverage the iMac’s color-accurate display and SSD-backed workflows. Teachers, students, and content consumers will appreciate the combination of tactile simplicity, system stability, and seamless iCloud synchronization across multiple Apple devices.

Budget-conscious buyers may view this iMac as a stepping stone before investing in a higher-tier Mac. It presents an opportunity to familiarize oneself with macOS workflows, keyboard shortcuts, and Apple’s software ecosystem before upgrading to newer hardware in the future.

Conversely, those requiring the horsepower to handle modern AAA gaming titles, large-scale 3D rendering, or professional video encoding should seek configurations with discrete GPUs, higher-core-count CPUs, and expanded memory. Users needing guaranteed compatibility with the latest macOS versions or running multiple virtual machines might consider newer or higher-end iMac models or MacBook Pros.

Conclusion: Final Verdict

Strong value proposition for general use at a reduced price point.
Buyers should confirm accessory compatibility and plan for potential upgrades.

Overall, the Apple iMac 21.5-inch 2.7GHz Core i5 (ME086LL/A) Renewed edition offers a compelling value for customers seeking a polished Apple desktop experience on a budget. Its SSD-enhanced responsiveness, high-quality display, and macOS integration position it ahead of many refurbished PC competitors in the same price range.

Prospective purchasers should exercise caution by carefully reviewing product listings to confirm accurate storage configurations, macOS versions, and accessory types before placing an order. Planning for a mindfully timed system update to the latest macOS release and setting aside a budget for genuine Apple peripherals will help ensure a smooth and reliable user experience.

In summary, this Amazon Renewed iMac represents a middle ground between affordability and performance. While it may not cater to cutting-edge gaming or professional video production, it stands as a dependable workstation for everyday tasks, media consumption, and light creative projects. With proper expectation management and minor tweaks, it can deliver years of stable, stylish service.