DetectedMacBook Air 13" (M1, 2020)

Know exactly what
you’re buying.

Nine hardware checks, five minutes, one number to negotiate to.

Start the 5-minute test

No install, no account. Runs on the seller’s Mac in a browser tab.

RUNNING DIAGNOSTICS

120Hz confirmed

Display

Speakers

Thermals

Detecting this Mac · Change model

What the test covers.

The wizard walks these in order. You can also open any one on its own.

Ownership locksActivation Lock, remote management, company enrolment.60 sec›DisplayDead pixels, uniformity, and the panel’s true refresh rate.45 sec›KeyboardEvery key, stuck keys, repeats and rollover.40 sec›TrackpadDead zones, click pressure, two-finger gestures.30 sec›SpeakersBlown drivers, chassis rattle, stereo balance.30 sec›MicrophoneRecord and play back on the spot.20 sec›CameraLive feed, real resolution, frame rate.20 sec›PortsCharging and data on every USB-C socket.3 min›ThermalsSustained load, throttling, cooling health.5 min›

Run all nine in order

Three checks before you touch the keyboard.

A flawless screen means nothing if the machine still belongs to someone else. Each of these is one command, and none of them need a password.

Deal-breakerRemote managementEx-corporate Macs stay enrolled to their old employer, who can lock or wipe the machine after you pay.How to check ›Price leverBattery cyclesUnder 250 is nearly new. Over 800 means a service bill you should be taking off the asking price today.Read the numbers ›Second opinionBuilt-in diagnosticsHold ⌘D at boot and the firmware reports its own faults. We translate the codes it gives back.Decode a code ›

Most used MacBooks arrive without a charger.

AFFILIATE LINKS · SAME PRICE FOR YOU

Worth buying alongside it

Warranty-backed alternatives and the accessories most Macs arrive missing

Best in Europe · From $579Refurbed — Graded MacBooks with a 12-Month WarrantyEuropean marketplace with transparent A/B/C condition grading, 30-day returns and a 12-month minimum warranty on every Apple Silicon MacBook.View ›Fixes a 256GB Mac · ~$99Samsung T7 Shield Portable SSD (1TB / 2TB)Apple Silicon SSDs are soldered to the logic board, so a 256GB Mac can never be upgraded internally. A 1,050 MB/s external drive is the only way to add space.View ›High Performance · ~$50Thunderbolt / USB4 Hub for M-Series MacBooksAdds HDMI 4K@60Hz, an SD card slot, USB-A ports and 100W passthrough charging to a Mac that ships with two ports.View ›

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