JoyKoi FK8790 6D Rotary Head Shaver

The JoyKoi FK8790 head shaver is a cordless rotary model with a flexible 6D head, USB-C charging and wet-or-dry use claimed. The listing states up to 180 minutes of use per approximately one-hour charge, but does not give the conditions for that runtime.

At a glance

Flexible 6D floating head is described as following the curve of the head.
Listing claims wet or dry shaving and IPX8 waterproofing.
USB-C charging, LED battery display and travel lock are listed.
The listing claims up to 180 minutes of use after approximately one hour of charging.

Price

£29.98Save 25%

Reference price: ~~£39.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

USB-C charging and a battery-level display make charge status easier to check.
The claimed wet-and-dry use and washable design offer flexible cleaning and shaving routines.
A storage box and protective cover are listed for storage and travel.

Technical specifications

14 specifications

Identity
Brand	JoyKoi
Model	FK8790

Shaving
Head type	Rotary
Number of blades	6
Blade material	Titanium
Colour	Black & Gray

Power and battery
Power configuration	Battery Powered
Charging	USB-C charging
Claimed runtime	Approximately 1 hour of charging can provide up to 180 minutes of usage time.
Battery	1 Lithium Polymer batteries required. (included)

Use and care
Water resistance	IPX8 waterproof
Travel feature	Travel lock

Dimensions and weight
Dimensions listed	8.2 x 6.9 x 8.2 cm; 400 g
Weight listed	400 Grams

What to know before buying

Listing details to confirm

Runtime is a listing claim and the operating conditions are not specified. The title describes a head shaver, while the recommended-use field says Face. Check that the intended shaving area suits your needs. The listing gives 400 Grams and also 400 g in the dimensions entry, with no separate net-weight clarification.

What’s in the box

Included

1 x Head Shaver
1 x Cleaning Brush
1 x Storage Box
1 x Charging Cable
1 x Protective Cover

Who is it for?

A good fit for

People looking for a cordless rotary shaver for head or face use who value wet-and-dry operation.
Travellers who want USB-C charging, a travel lock and a listed storage box.

Less suited to

Buyers who need a clearly stated shaving-area recommendation or verified runtime conditions before choosing.

JoyKoi FK8790 6D Rotary Head Shaver · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 1,118 ratings

5 stars73%73%
4 stars14%14%
3 stars5%5%
2 stars3%3%
1 star5%5%

Customer feedback highlights ease of use and cleaning, smooth shaving, portability and perceived battery life. Those reported impressions are relevant to a cordless model with a washable design and travel accessories, but they do not verify the listing's runtime or waterproof rating. Aggregate ratings are mostly positive, though a smaller share are lower-star ratings, so experiences are not uniformly favourable.