Every pattern in the Osmium review kit, in the order a review would use them. Each one is core blocks only, so a review built from them keeps working in any theme.
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Verdict
Buy it if you draft for hours and share a room. Skip it if you want a numpad.
What works
- The quietest switches I have typed on
- Eleven days of battery in daily use
- Mac and Windows layouts on one switch
What does not
- No numpad, and no plan for one
- The companion app needs an account
Our score
8.6 out of 10
The best keyboard I have tested for long sessions in a shared room, held back by the missing numpad.
| Category | Score |
|---|---|
| Build | 9.0 |
| Typing feel | 8.8 |
| Battery | 8.4 |
| Value | 8.2 |
At a glance
| Best for | Long writing sessions in a shared room |
|---|---|
| Price | $99 at the time of testing |
| Tested for | Six weeks as my only keyboard |
| Where to buy | The maker and most large retailers |
What works
- The one thing it does better than anything else at this price
- A number you measured yourself, with the conditions you measured it under
- Something that only shows up after a few weeks of daily use
What does not
- The limitation that would send a specific person to a different product
- The thing the marketing page does not mention
- What you gave up to get the item in the left column
| Spec | Measured | Claimed |
|---|---|---|
| Battery, daily use | 11 days | 14 days |
| Noise at 30 cm | 38 dB | Not stated |
| Weight | 842 g | 840 g |
| Warranty | 2 years | 2 years |
The details
A low-profile wireless keyboard built for long drafting sessions. It pairs with three devices and switches between them with one key.
- Eleven days of battery in daily use
- Bluetooth and a USB-C cable, both included
- 842 grams, measured on a kitchen scale
Around 99 dollars at full price. It drops by about a fifth twice a year, so there is rarely a reason to pay the full amount.
How it compares
| Product | Battery | Noise | Score | Best for |
|---|---|---|---|---|
| The one you reviewed | 11 days | 38 dB | 4.4 | Shared rooms |
| The cheaper alternative | 6 days | 46 dB | 4.0 | A first purchase |
| The one people expect you to pick | Wired | 52 dB | 3.7 | Numbers work |
Which one is for you
Best overall
The one to buy
For someone who will use this every working day and wants to stop thinking about it.
Best on a budget
The cheaper pick
For a first purchase, where the money saved matters more than the last ten percent of quality.
Best for one job
The specialist
Wrong for most people, and the right answer for the one situation the others handle badly.
Our top picks
| Pick | Best for | Why | Full review |
|---|---|---|---|
| Keychron K3 | Most people | Quiet keys and 11 days on a charge | Read the K3 review |
| Harbor 75 | A tight budget | Costs $59 and types better than it should | Read the Harbor 75 review |
| Tessel Split | Sore wrists | Two halves you can set at shoulder width | Read the Tessel Split review |
1. The Keychron K3

The best keyboard here for most people. It is quiet enough for a shared room, lasts 11 days on a charge, and costs $99.
What works
- Quiet keys, 38 dB at 30 cm
- Eleven days on a charge
- One switch for Mac and Windows
What does not
- No numpad
- Keycaps start to shine after a month
- The companion app needs an account
Alternatives worth a look
Harbor 75
Choose it if you want to spend under $60 and can live with louder keys.
Tessel Split
Choose it if long sessions leave your wrists sore and you can spare a week to relearn.
Lumen Pro
Choose it if you need a numpad and would rather never charge a keyboard again.
How the plans compare
| Feature | Free | Pro | Team |
|---|---|---|---|
| Seats | 1 seat | 1 seat | 5 seats |
| Custom domain | No | Yes | Yes |
| Paid subscriptions | No | Yes | Yes |
| Subscriber export | Yes | Yes | Yes |
| Shared drafts | No | No | Yes |
How it was tested
The K3 was my only keyboard for six weeks. I bought it at retail for $99, and every number on this page comes from the conditions below.
- Six weeks as the only keyboard on the desk
- Bought at retail, not sent by the maker
- Battery timed from full to cutoff with the backlight off
- Noise measured at 30 cm with the same phone in the same room
- Typed side by side with the two boards it would replace
Before you buy
- Check the layout: a 75 percent board drops the numpad
- Confirm it pairs with every computer you use, not only one
- Find the return window and put the last day in your calendar
- Look at the price history, since many sale prices are the usual price
- Try the switch type in a shop or with a tester kit first
40 percent off the first year with code EXAMPLE40.
The catch: it applies to the annual plan only, and renewal is at full price. Ends 31 December.
Product name
One sentence on who should buy it, in the words you would use to a friend.
The verdict
Buy the K3 if you write for hours in a room you share. Look elsewhere if you want a numpad or a louder click.



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