Logitech K400 Plus Wireless Touch Keyboard vs Logitech Pebble Keys 2 K380s Bluetooth Keyboard
Get the Logitech Pebble Keys 2 K380s. Unless it's for a PC plugged into your TV and you want a touchpad built in — then the K400 Plus.
Logitech K400 Plus Wireless Touch Keyboard
A cheap, quiet keyboard with a built-in touchpad, for a PC plugged into the TV. Not one for a desk: cramped keys, no Bluetooth and no backlight.
Logitech Pebble Keys 2 K380s Bluetooth Keyboard
A cheap, light and very quiet Bluetooth keyboard for a tablet, a laptop or travel. It pairs with three devices and runs for years on two AAA batteries.
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The K380s is a light, quiet Bluetooth keyboard that pairs with three phones, tablets or computers and runs for years on its batteries. The K400 Plus adds a touchpad for controlling a TV PC from the sofa, but it's receiver-only, so it won't work with phones or tablets.
- —You've got a media PC on the TV.
- —You want a touchpad and keyboard in one.
- —Your PC has no Bluetooth.
- —You type on a tablet or phone.
- —You want something to carry around.
- —You switch between devices.
What verified owners report
Only reviews from checked buyers count, and every 1–3 star review is read by us. How we do this
Owners love how easy it is to set up and use from the sofa with a TV or laptop, with the touchpad built in. The complaints are a touchpad that's laggy or hard to use, a flimsy, rattly build, smart TV apps it doesn't fully work with, and cramped keys.
- ✓Easy to set up
- ✓Compact and light
- ✓Great for a TV or the sofa
- −Touchpad laggy, unresponsive or hard to use
- −Cheap, flimsy build that flexes or rattles
Owners love how small and light it is, how easily it connects and the comfortable keys. Complaints are rare.
- ✓Small, light and easy to carry
- ✓Connects quickly and easily
- ✓Comfortable keys
None came up often enough to list.
Key differences
Pros and cons
- +Keyboard and touchpad in one
- +Very quiet
- +Cheap
- −USB receiver only, with no Bluetooth.
- −No backlight, so it's hard to read in a dark room.
- −Tight key spacing makes typos easy.
- −The plastic body flexes and the keys feel slippery.
- −Limited support on a Mac.
- +Light and easy to carry
- +Very quiet
- +Pairs with three devices
- −Round, close-set keys take some getting used to.
- −No backlight, number pad or adjustable feet.
- −Bluetooth only, unless you buy a Bolt receiver.
For the curious
A deeper look at full specs.
Touchpad
The K400 Plus has a touchpad; the Pebble Keys 2 doesn't.
Connection
Unifying receiver on the K400; Bluetooth on the Pebble, for up to 3 devices.
Technical specifications
| K400 Plus | Logitech Pebble Keys 2 K380s | |
|---|---|---|
| Type | Compact keyboard with built-in touchpad | — |
| Touchpad | 76 × 47 mm | — |
| Connection | Logitech Unifying receiver (2.4 GHz), over 10 m range | Bluetooth; Logi Bolt receiver sold separately; up to 3 devices |
| Battery | 2 AA (included), up to 18 months | 2 × AAA, up to 36 months |
| Media keys | Mute, volume up, volume down | — |
| Typing noise | Within 55 dBA | — |
| Key life | Up to 5 million keystrokes | — |
| Size | 354.3 × 139.9 × 23.5 mm | — |
| Weight | 390 g | — |
| Layout | — | Compact, no number pad; Mac and Windows labels |
| Keys | — | Low-profile scissor keys, round caps |
| Backlight | — | None |
From the maker's spec sheet for the K400 Plus (Logitech K400 Plus) and the Logitech Pebble Keys 2 K380s (Pebble Keys 2 K380s), checked October 2026. Versions sold in other countries can differ slightly.
- Is the K400 Plus worth it?
- Is the Logitech Pebble Keys 2 K380s worth it?
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How we reached this verdict
We compared independent expert reviews with the manufacturer's specifications, then checked it's sold at a major retailer where you live. We don't test products ourselves.
Sources: RTINGS, RTINGS, Engadget, Trusted Reviews, manufacturer specifications.
Owner reports for the K400 Plus: 617 verified buyer ratings at Currys, read October 2026.
Owner reports for the Logitech Pebble Keys 2 K380s: 62 verified buyer ratings at Currys, Otto (Germany) and LDLC (France), read October 2026.