Buying Guide
The Best Wireless Keyboards Under $40
We weighed three keyboards on device pairing and paired devices, and the CZUR K5S costs the least.
By The PC Journal editorial team
11 min read3 products evaluated
From $30 to $40 you can find slim Bluetooth boards and some multi-device models. Every pick cost 30 to 40 when we checked and connects without a cable.
Rankings weigh paired devices, layout and key type as the makers state them; we did not test these keyboards ourselves, and if a maker skips paired devices, the guide says so.
Quick Picks
Our 3 recommendations at a glance. Tap a pick for the full verdict.
Premium Pick
Bnnwa K905 Rechargeable Touchpad Keyboard
The highest-priced pick here at the time of writing, with a built-in 500mAh rechargeable battery.
Best for: Buyers who want a built-in 500mAh rechargeable battery and can spend more than the K380s costs.
Our take Check price for Bnnwa K905 Rechargeable Touchpad Keyboard (opens in a new tab)
Also Consider
Logitech Pebble Keys 2 K380s
Customizable Fn keys in Logi Options+.
Best for: Buyers who want customizable Fn keys in Logi Options+.
Our take Check price for Logitech Pebble Keys 2 K380s (opens in a new tab)
Lowest Price Here
CZUR K5S Touchpad Keyboard
Undercutting the K380s on price when we checked.
Best for: Getting OS shortcuts for Mac/iOS, Windows and Android for the least money.
Our take Check price for CZUR K5S Touchpad Keyboard (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| The highest-priced pick here at the time of writing, with a built-in 500mAh rechargeable battery. | Buyers who want a built-in 500mAh rechargeable battery and can spend more than the K380s costs. | Check price for Bnnwa K905 Rechargeable Touchpad Keyboard (opens in a new tab) |
| Customizable Fn keys in Logi Options+. | Buyers who want customizable Fn keys in Logi Options+. | Check price for Logitech Pebble Keys 2 K380s (opens in a new tab) |
| Undercutting the K380s on price when we checked. | Getting OS shortcuts for Mac/iOS, Windows and Android for the least money. | Check price for CZUR K5S Touchpad Keyboard (opens in a new tab) |
Our Picks
Premium Pick1 of 3
Bnnwa K905 Rechargeable Touchpad Keyboard on Amazon (opens in a new tab)
Bnnwa's rechargeable keyboard pairs with three devices over a receiver and two Bluetooth channels.
Best for
- Buyers who want a built-in 500mAh rechargeable battery and can spend more than the K380s costs.
Skip if
- Skip it if price comes first: the CZUR K5S cost less when we checked.
Why we like it
It uses scissor keys. A 500mAh rechargeable battery removes the need for AAA cells, and it pairs with up to three devices over 2.4GHz and Bluetooth. The trackpad sits beside the keys.
Its scissor-switch keys type quietly with a short travel, and Fn shortcuts switch between iOS, Windows, Android and macOS layouts. It shares a low-profile keys key type with the CZUR K5S; the K380s goes with a quiet scooped round keys key type. It also offers USB-C charging and connection to 3 devices at once.
Check that your computer has Bluetooth, or use the included receiver if there is one. Only the K380s came close to it on price at the time of writing; it cost the most of the 3 picks.
Key dimensions & specs
- Paired devices: 3 devices
- Layout: Compact with touchpad
- Key type: Low-profile keys
- Connection: 2.4GHz and two Bluetooth channels
Pros
- Built-in 500mAh rechargeable battery
- USB-C charging
- Connection to 3 devices at once
- The highest-priced pick here at the time of writing, with a built-in 500mAh rechargeable battery
Cons
- Costs more than the CZUR K5S at the time of writing
Also Consider2 of 3
Logitech Pebble Keys 2 K380s on Amazon (opens in a new tab)
Logitech's K380s is a compact Bluetooth keyboard with round, quiet scooped keys that pairs with three devices.
Best for
- Buyers who want customizable Fn keys in Logi Options+.
Skip if
- Price-first buyers should look at the CZUR K5S, which cost less when we checked.
Why we like it
Logitech offers up to 36 months on its batteries, and the Fn keys can be customised in Logi Options+. No other pick in this guide offers a quiet scooped round keys key type; compare the Bnnwa K905, which has a low-profile keys key type. It also comes with a 3-year battery life claim and auto-sleep.
Check that your computer has Bluetooth, or use the included receiver if there is one. It supports Windows and macOS layouts, which helps if you switch between computers. You also get this: up to 36 months per charge (backlight off). Its price falls between the CZUR K5S and the Bnnwa K905, based on our last check.
Key dimensions & specs
- Battery (backlight off): up to 36 months
- Paired devices: 3 devices
- Layout: Compact, no number pad
- Key type: Quiet scooped round keys
- Connection: Bluetooth, multi-OS
Pros
- Up to 36 months per charge (backlight off)
- Customizable Fn keys in Logi Options+
- 3-year battery life claim
- Auto-sleep
Cons
- Costs more than the CZUR K5S at the time of writing
Lowest Price Here3 of 3
CZUR K5S Touchpad Keyboard on Amazon (opens in a new tab)
CZUR's K5S is a compact Bluetooth touchpad keyboard that also works by cable.
Best for
- Getting OS shortcuts for Mac/iOS, Windows and Android for the least money.
Skip if
- Pass on it if wired only rules it out for your setup.
Why we like it
It sleeps after 10 minutes idle. Like the Bnnwa K905, it has a low-profile keys key type, while the K380s uses a quiet scooped round keys key type. It also comes with OS shortcuts for Mac/iOS, Windows and Android, a rechargeable battery and a wired mode.
Check that your computer has Bluetooth, or use the included receiver if there is one. Being wired, it needs no pairing or charging, which suits shared desks and IT-managed PCs. It undercut the K380s and every other pick on price at the time of writing. The maker doesn't give its device pairing; if that figure matters, the Bnnwa K905 offers 3 devices.
Key dimensions & specs
- Layout: Compact with touchpad
- Key type: Low-profile keys
- Connection: Bluetooth or wired USB
Pros
- OS shortcuts for Mac/iOS, Windows and Android
- Rechargeable battery
- Wired mode
- Bluetooth or wired USB connection, the only one here
Cons
- Wired only
- No published device pairing
How We Chose These Wireless Keyboards Under $40
Each pick was assessed across 4 criteria weighted for real-world use.
- How these picks were ranked
- We lined up three keyboards on device pairing, layout, key type and connection as the makers state them. These are research figures, not bench results: 1 of 3 picks leave out device pairing.
- What every pick has in common
- All 3, from the Bnnwa K905 to the CZUR K5S, state layout, key type and connection.
- Where the specs have gaps
- The CZUR K5S gives no device pairing.
- Price range
- From the CZUR K5S to the Bnnwa K905, all sat in the under $50 tier when we checked.
What to Look for in a Wireless Keyboard Under $40
Key buying criteria so you get the right fit the first time.
Extras that separate them
The Bnnwa K905: USB-C charging. The K380s: a 3-year battery life claim. The CZUR K5S: a rechargeable battery.
Budget
All 3 sat in the under $50 tier when we checked, from the CZUR K5S at the low end to the Bnnwa K905 at the top, so decide on features first.
Start from what matters most
Buyers who want a built-in 500mAh rechargeable battery and can spend more than the K380s costs: the Bnnwa K905. Getting OS shortcuts for Mac/iOS, Windows and Android for the least money: the CZUR K5S.
Multi-device switching
Keyboards that pair with three devices let you move between a work laptop, a personal PC and a tablet with one key.
Check whether switching uses Bluetooth, a receiver, or both.
Choose the shape before the switch
Split, curved and wave layouts keep your wrists straighter than a flat board. They take a few days to learn.
If you type for most of the day, an ergonomic layout usually matters more than the switch type.
How to Choose a Wireless Keyboard Under $40
By priority
| Priority | Consider | Why |
|---|---|---|
| Buyers who want a built-in 500mAh rechargeable battery and can spend more than the K380s costs | Bnnwa K905 | The highest-priced pick here at the time of writing, with a built-in 500mAh rechargeable battery |
| Buyers who want customizable Fn keys in Logi Options+ | K380s | Customizable Fn keys in Logi Options+ |
| Getting OS shortcuts for Mac/iOS, Windows and Android for the least money | CZUR K5S | Undercutting the K380s on price when we checked |
Scroll sideways to see every column.
Key specs side by side
The Bnnwa K905, the K380s and the rest, as their makers list them.
| Keyboard | Paired devices | Layout | Key type | Connection |
|---|---|---|---|---|
| Bnnwa K905 | 3 devices | Compact with touchpad | Low-profile keys | 2.4GHz and two Bluetooth channels |
| K380s | 3 devices | Compact, no number pad | Quiet scooped round keys | Bluetooth, multi-OS |
| CZUR K5S | Not listed | Compact with touchpad | Low-profile keys | Bluetooth or wired USB |
Scroll sideways to see every column.
Frequently Asked Questions
Why is the CZUR K5S our Lowest Price Here pick?
It earns the label for undercutting the K380s on price when we checked. It is aimed at getting OS shortcuts for Mac/iOS, Windows and Android for the least money.
Do the Bnnwa K905 and the K380s differ on key type?
The Bnnwa K905 and the CZUR K5S use low-profile keys; the K380s uses Quiet scooped round keys.
What extras do the Bnnwa K905 and the K380s include?
The Bnnwa K905: a built-in 500mAh rechargeable battery. The K380s: customizable Fn keys in Logi Options+. The CZUR K5S: OS shortcuts for Mac/iOS, Windows and Android.
Who should choose the Bnnwa K905?
The Bnnwa K905 carries our Premium Pick label for the highest-priced pick here at the time of writing, with a built-in 500mAh rechargeable battery. It ranks first of 3 here and sat in the under $50 tier at our last price check; it suits anyone who wants a built-in 500mAh rechargeable battery and can spend more than the K380s costs.
Should I pick the Bnnwa K905 or the CZUR K5S?
The Bnnwa K905 suits buyers who want a built-in 500mAh rechargeable battery and can spend more than the K380s costs; the CZUR K5S suits getting OS shortcuts for Mac/iOS, Windows and Android for the least money.
Bottom Line
Our first pick is the Bnnwa K905, chosen for the highest-priced pick here at the time of writing, with a built-in 500mAh rechargeable battery. Look at the K380s for customizable Fn keys in Logi Options+ and the CZUR K5S for undercutting the K380s on price when we checked if those matter more to you.
If you switch between a PC and a tablet, look for a board that stores several pairings.