K400 Mobile

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

27 来源

The term 'K400 Mobile' typically refers to one of three distinct products, each occupying a different niche in the market:

1. Logitech K400 Plus Wireless Touch Keyboard (Current Accessory)

This is the most commercially active "K400" product today. While not a phone, it is a mobile-compatible accessory frequently used with Android tablets, smartphones, and Smart TVs.

* Key Trends: The "K400 Plus" is a staple in the HTPC (Home Theater PC) and mobile productivity markets due to its integrated touchpad. It is currently marketed as a professional tool for flexible workspaces, with broad compatibility across Android 5.0+, Chrome OS, and Windows Logitech Phonedb.

* Market Insights: Wholesale prices for the K400 Plus range from $18.50 to $55.00 depending on order volume Alibaba Alibaba.

2. LG K400 Series (Harmony 4 / Premier Pro Plus) (Legacy Smartphone)

Released in June 2020, this was a mid-range U.S. carrier-exclusive smartphone series (Model: LMK400AM) Phonedb.

* Market Status: These devices are now discontinued. The current B2B market for the LG Harmony 4 consists primarily of protective cases and replacement components (screens/batteries) rather than new handsets Alibaba Alibaba.

3. Sony Ericsson K400 (Vintage/Retro Feature Phone)

A candybar feature phone from the mid-2000s "golden era" of mobile devices Facebook.

* Market Status: It exists today solely as a vintage collector's item. Consumer interest is driven by nostalgia for its reliability and iconic ringtones Facebook.

Market Summary

Product Type	Market Category	Status	Primary Use Case
Logitech K400 Plus	Mobile Accessory	Active	Android Tablets, Smart TVs, HTPCs
LG Harmony 4	Smartphone	Discontinued	Legacy use; Accessories/Parts only
Sony Ericsson K400	Feature Phone	Vintage	Retro collectors; Nostalgia

Based on these 'K400' insights, you can continue with:

Sources & References

27 sources cited · Verified industry data & reports

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