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

Deal.ai › Store › Home & Kitchen › Kitchen & Dining
S
Smart Vacuum Flask with Temperature Display

Smart Vacuum Flask with Temperature Display

5(3 ratings)

Sold and shipped by Deal.ai

$19.99Free shipping

Buy 2, save 10% · 3+, save 15%

Extra 10% off your first order

Color: Pink

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

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Price facts

  • Last seen at $19.99 at Deal.ai on Nov 12.

Our take on the Smart Vacuum Flask with Temperature Display

A 500ml stainless steel vacuum flask with a screw-top lid that shows the drink's temperature on a digital display. The double-wall build uses 304 steel inside and 201 outside, and the maker claims 6 to 12 hours of insulation. The display is the draw over a plain flask: you can check whether the water is still hot enough for tea or cool enough for a child without opening the lid. Against basic vacuum flasks it adds electronics in the cap, which is the part most likely to fail or need a battery.

Best forCommuters who want to check drink temperature without opening the lidParents filling flasks for childrenOffice and desk useGifts
Pros
  • Digital temperature readout on the cap
  • Double-wall vacuum insulation
  • 304 food-grade steel interior
  • 500ml capacity suits a desk or commute
  • Cylindrical body fits most cup holders and bags
Cons
  • Cap electronics depend on a battery
  • Display cap is bulkier than a plain screw lid
  • 6 to 12 hour insulation is modest next to premium flasks
  • No stated dishwasher or leak-test detail

About the Smart Vacuum Flask with Temperature Display

This is a cylindrical vacuum flask with a screw-top lid. The cap has a digital display that shows the temperature of the contents.

The inner wall is 304 stainless steel and the outer wall is 201 stainless steel. Insulation lasts 6 to 12 hours. The capacity is 500 ml.

Capacity
500 ml
Inner material
304 stainless steel
Outer material
201 stainless steel
Insulation
6 to 12 hours
Function
Temperature display on the cap
Quality grade
Qualified product

Questions and answers

How long does it keep drinks hot?
The maker states 6 to 12 hours of insulation. Real-world results depend on fill level, starting temperature and how often you open the lid.
Does the temperature display need a battery?
Yes. The display sits in the cap and runs on a small battery, so the readout stops when it runs out. The flask still insulates without it.
Is it safe for hot drinks like tea or coffee?
The interior is 304 stainless steel, a food-grade grade used in drinkware. Fill it and let very hot drinks cool slightly before sealing.
How much does it hold?
500ml, about two standard mugs. That is a typical single-person day flask size.
Can I put it in the dishwasher?
No dishwasher guidance is given. Hand wash the body and keep the display cap away from soaking to protect the electronics.
What comes in the box?
The flask with its display cap. Some listings show a bundle with a slim writing tablet and stylus, so check what the buy box includes.
Where is the Smart Vacuum Flask with Temperature Display cheapest?
At Deal.ai, for $19.99, as of our latest check.

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Reviews

5.0 out of 5from 3 reviews

From buyers of this item at other stores, collected by our supplier. Reviews written in English.

  • google9151782607743979🇪🇸Jul 2026

    Hello, I received my sample order today, but unfortunately the product arrived damaged. The LED temperature display is not working, and when I gently shake the bottle, I can hear a loose part moving inside, so it seems something has broken during shipping or there is a manufacturing defect. I also noticed that the packaging offers very little protection. The bottles were shipped inside individual cardboard boxes, but each bottle was only wrapped in a thin plastic bag, without any bubble wrap

  • I***n🇧🇪Feb 2023

    wrong colour, I ordered red but got pink.

  • F***f🇺🇸Jan 2023

    Keeps drink very warm all day