Yes: on an MX Keys S, a broken key is replaced with an MX Keys key, hinge included, with one exception, the function row. Letters, digits, modifiers and the space bar are the same parts on both keyboards: from €8.99 for a letter, €10.99 for a modifier, €21.90 for the space bar. The MX Keys S, announced by Logitech in May 2023, keeps the chassis and scissor keys of the 2019 MX Keys; the hinge is the same, and fitting takes under a minute with no tools.
MX Keys vs MX Keys S: the differences at a glance
The MX Keys S (2023) keeps the chassis, scissor keys and hinge of the 2019 MX Keys. Three things change: several function-row keys carry new symbols (dictation, emoji, mic mute), the receiver is Logi Bolt instead of Unifying, and Smart Actions, macros set up in Logi Options+, arrive with it.
The function row: order by the printed symbol
The F keys of the MX Keys S have the same shape as those of the MX Keys, but several carry a different symbol. An F key taken from the other model clips on and works, since the keyboard decides what the key does, but its legend will no longer match its action. For a function key, pick the MX Keys S model in the catalogue and compare the symbol with your keyboard.
Diagnosis
Same diagnosis as on an MX Keys: if the key fell off and the hinge is intact, it clips back on for free; if the hinge is split, order a hinge on its own (€6.99) or a complete key, which comes with its own. For a letter, digit, modifier or the space bar, an MX Keys or MX Keys S key fits either way. For a function-row key, take the MX Keys S version.
How to fix it
- 1
Identify the broken key and note your layout (AZERTY, QWERTY, QWERTZ); for an F key, note the printed symbol too.
- 2
Lift the key straight up with a fingernail or plastic spudger.
- 3
If the hinge is split, remove the pieces and clip in the one supplied with the key.
- 4
Place the replacement key and press firmly in the centre until it clicks.
FAQ
Does an MX Keys key fit an MX Keys S?
Yes for letters, digits, modifiers and the space bar: same profile, same hinge, same mounting. Not identically for the function row: several MX Keys S F keys carry other symbols (dictation, emoji, mic mute).
Does the MX Keys S have a Smart Actions key?
No. Smart Actions are a feature of the Logi Options+ software: sequences of actions you set up and then trigger from the keyboard. There is no physical key of that name to replace.
How much does an MX Keys S key cost?
The same as on the MX Keys: from €8.99 for a letter or digit, €10.99 for a modifier, €21.90 for the space bar. Every key ships with its hinge.
Which receiver does the MX Keys S use?
A Logi Bolt receiver, where the 2019 MX Keys used a Unifying receiver. Both keyboards also connect over Bluetooth.
On an MX Keys S, every key can be replaced individually. MX Keys keys fit everywhere except the function row, where you order by the symbol printed on your own keyboard.