StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy

Free shipping on everything·10% off your first order·No account needed · Buy 2, save 10% · 3+, save 15%

Deal.ai › Store › Home & Kitchen › Small Appliances
U
USB Smart Touch Mug Warmer

USB Smart Touch Mug Warmer

Sold and shipped by Deal.ai

$20.99Free shipping

Buy 2, save 10% · 3+, save 15%

Extra 10% off your first order

Color: Red
Electrical outlet: TypeC

Arrives about Nov 21 – Dec 1, from a warehouse in China

1

30-day full refund: if you're not happy with it for any reason, or it never arrives, tell us within 30 days and we refund you in full. Shipping and refunds

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $20.99 at Deal.ai on Nov 12.

Our take on the USB Smart Touch Mug Warmer

A small USB-powered coaster that keeps a mug of coffee, tea or milk warm rather than heating it. It has three touch-selectable heat levels with red, blue and green indicator lights and shuts off automatically after 8 hours. At 8-10W it is a low-power desk accessory, so it suits a desk, dorm or bedside where a mug sits for a while. Against plug-in mug warmers it is lighter and more portable, but it needs a 5V/2A USB adapter you supply and cannot boil water.

Best forOffice desk workers who sip slowlyDorm and study-desk useKeeping tea or coffee warm at a bedsideTravelers with a USB adapter
Pros
  • Three heat levels with color-coded lights
  • Automatic 8-hour shutoff
  • Light and compact, easy to move
  • Works with mugs of coffee, tea or milk
  • Powered by a standard USB cable
Cons
  • Cannot boil water, only keep it warm
  • No power plug included, only a USB cable
  • Needs a 5V/2A adapter or warmth suffers
  • Small 102 mm surface fits one mug
  • Plastic build feels basic

About the USB Smart Touch Mug Warmer

This USB mug warmer is a round heating coaster that keeps a drink warm on a desk. It can be used with milk, tea, coffee and similar drinks. It keeps drinks warm only and cannot boil water.

The flat top surface has a touch switch with three heating gears. The first touch selects the high gear and lights a red indicator. The second touch selects the middle gear and lights a blue indicator. The third touch selects the low gear and lights a green indicator. The warmer shuts off automatically after 8 hours of operation.

It is light and compact, so it is easy to carry and takes up little space. It suits schools, dorms and offices. It comes with a USB cable but no plug. Use a DC 5V/2A power plug, or the warming performance will be affected.

Material
Aluminum alloy, tempered glass
Size
7 x 102 mm
Voltage
DC 5V/2A
Power
8-10W
Heating gears
3 (high, middle, low)
Indicator lights
Red (high), blue (middle), green (low)
Control
Touch switch
Safety
Automatic shutdown after 8 hours of operation
Power plug
Not included; use a DC 5V/2A plug
In the box
1 heating pad, 1 USB cable

Questions and answers

Can it boil water or make hot coffee?
No. It only keeps a drink warm. The maker states water cannot be boiled on it, so start with a drink that is already hot.
What do I need to power it?
A DC 5V/2A USB power adapter, which is not included. The box has the coaster and a USB cable only. A weaker adapter reduces how well it keeps heat.
How do the three heat levels work?
Touch the switch to cycle gears. The first touch gives high with a red light, the second middle with blue, the third low with green.
Does it turn off by itself?
Yes. It shuts off automatically after 8 hours of continuous use.
What size mug fits on it?
The warming surface is about 102 mm across, so a standard mug fits. Very wide or heavy mugs may overhang.
Is it safe to leave on a desk?
It is a low-power 8-10W device with automatic shutoff, but the top gets warm, so keep it on a stable surface and away from paper and cables.
Where is the USB Smart Touch Mug Warmer cheapest?
At Deal.ai, for $20.99, as of our latest check.

More in Small Appliances

  • P
    Portable Oil-Filled Radiator Space Heater
    Portable Oil-Filled Radiator Space Heater
  • P
    Portable Mini Electric Space Heater
    Portable Mini Electric Space Heater
  • P
    Portable Tower Heater with Remote Control
    Portable Tower Heater with Remote Control
  • P
    Portable Tower Heater with Remote
    Portable Tower Heater with Remote
  • 4
    400W Portable Desktop Electric Space Heater
    400W Portable Desktop Electric Space Heater
  • P
    Portable Pig-Shaped Space Heater
    Portable Pig-Shaped Space Heater
  • P
    Portable Tower Space Heater with Remote
    Portable Tower Space Heater with Remote
  • W
    Wall-Mounted Electric Space Heater with Remote
    Wall-Mounted Electric Space Heater with Remote
All 214 in Small Appliances →