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🔥 Stay in the zone with your perfect sip—temperature on point, style on lock! 💼
The flintronic 400ML Vacuum Cup Flask combines cutting-edge waterproof LCD temperature display with advanced double-wall vacuum insulation, keeping drinks hot for up to 6 hours or cold for 5. Crafted from premium 304 stainless steel and equipped with a rechargeable battery lasting nearly a month, this sleek, portable flask is designed for professionals who demand precision, durability, and style in their daily hydration.















| ASIN | B07VCCKNYJ |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 42,342 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 56 in Camping & Hiking Flasks |
| Brand | flintronic |
| Brand Name | flintronic |
| Cap Type | Screw Cap |
| Capacity | 400 ml |
| Colour | Black |
| Country Of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 444 Reviews |
| Included Components | Battery, Usb Cable |
| Item Dimensions W x H | 8W x 25H centimetres |
| Item Weight | 375 Grams |
| Manufacturer | flintronic®-eu |
| Material Type | Stainless Steel |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Water, Outdoor Activities |
| Recommended uses for product | Water, Outdoor Activities |
| Special Features | Temperature Display |
| Special feature | Temperature Display |
| Theme | Sport |
| Unit Count | 1 count |
| With Lid | Yes |
C**K
Great
Firstly this is not a bottle that electronically keeps your water cool or hot drinks warm. In other words, it’s not for setting a temperature and then it stays like that. That’s quite a common misconception about these things. Really it’s just a flask with a digital readout! So fill it with cold juice or water and it’ll stay cool for hours but you’ll notice the temperature creep up from say 10 degrees every hour by a few degrees. It glows blue to show there’s a cold drink inside. Normal temperature shows green. Put hot water in or tea or coffee and you’ll see the indicator ring glow red and show a high temperature. I put boiling water in it as a test and it showed as 99 degrees which is correct. Technically boiling point is 100c but the readout can only show two figures therefore 99 will do. It very slowly crept down and six hours later it was 80 something. I made a cup of tea in it with milk so the temperature was around 86 at the point of brewing. Four hours later and I was still drinking it really hot. You won’t get beyond six hours of protection with this but it’s really good. I wish it was bigger because it only holds around 400ml which is two average cups of tea I’d say. So remember this is just a posh flask, not one of those things that keeps your tea at a steady temperature. I still recommend this highly
M**E
This is one of the best things I've invested for myself!
Great product! I have only used it for hot drinks. I wake up at 4am, make coffee around 4.15am for work. Half way through work, at around 11.30am, it is still burning hot. Even when I finish work and get home for around 4pm, it's warm - hot! (Its the same with green tea or any other hot drinks I've previously made with it) My colleagues and general manager also want to get one
C**H
Good
Sleek. Good for office use. I wish it was larger. It kept cool drinks although i found hot drinks like coffee didn't stay as long as indicated. Peharps soups stay 'warm'
R**S
Keeps liquids warm, and warns you before you burn your mouth!
I bought the rechargeable version (I know there are a few different versions under this listing). The vacuum function is awesome, it keeps liquids hot for hours (Thermos King & Thermos Ultimate are the best for that, but this one holds its own). But best of all, it can tell you the temperature before you open it and risk burning your mouth (especially with a simple red circle if it's >55C). The metal lip is quite rounded, so it's quite comfortable to sip from (not sharp like the Swell bottle and its clones). The operation is also simple. It's not as smart as some more expensive flasks which connect to mobile apps, but it also means that you are not reliant on the app being maintained by developers over the years. The only drags would be the capacity (400ml, although I chose it over the 500ml versions because of rechargeable battery)., and it uses a round USB connector (getting an adaptor isn't too hard, but not as convenient as something like USB-C). One heads up is that it takes about 10-20mins after you close the lip for the temperature to become accurate. This is because the thermometer is at the top and measures the air temperature rather than the water termperature, which may take some time to stabilise. So don't expect an accurate reading right after you've had a sip and closed the lid. Overall highly recommended!
S**A
A simple normal thermos would be lit better than this rubbish
The flask doesn’t hold the temperature as it should the water temperature goes down quicker than a normal thermos flask I am afraid it’s not value for money at all very disappointed I bought it as it looked quite hi te ki but it’s actually rubbish. Don’t waist money on this you had rather buy a simple normal thermos
Z**E
Overall good product.
Screw top loose up after a few days, but not a big problem yet. Will have to see how it is going.
E**C
Essential Smart Bottle!
Super water bottle & flask. Kept my coffee hot for over five hours at 70°+ Really good to know how hot or cold your drink is and being a person who needs to drink lots of water the smart reminder is an excellent feature. Well worth the money. I've just bought another one so I can easily carry one with coffee & the other with water.
D**E
Vinyl
Excellent
G**5
Exactement ce que je cherchais
Très belle bouteille aux finitions exceptionnelles. Un petit peu plus petite que décrite dans l'annonce, elle a une contenance mesurée de 350 ml et ses dimensions sont : 23,5 cm x 6,5 cm. mais elle convient tout à fait pour avoir une réserve d'eau ou de café suffisante sans prendre trop de place dans le sac. Le revêtement semble de très belle qualité et le produit donne l'impression d'être solide et durable. Une manière sympa d'éviter l'achat quotidien d'une bouteille plastique, donc je peux choisir ma boisson chaude ou froide et en plus, c'est bon pour la planète. Que dire de mieux ? A voir dans la durée ...
L**E
Perfecta compañera de oficina y outdoor
Una de las mejores termos que he probado , me dura la bebida caliente más de 12 horas, la pongo por la mañana y me la bebo a las 15 horas y todavía quema! Muy práctico el filtro que tiene, ya que puedes poner directamente las hierbas o infusiones directamente en la botella. La forma es elegante y el material parece de calidad. El control de temperatura va bien pero no es algo que yo utilice. La volvería a comprar, por el precio es 100 x 100 recomendable.
H**Y
Hält was sie verspricht
Schöne kleine Thermoskanne mit Temperatur Anzeige. Hält super lange warm und mit der Anzeige verbrüht man sich auch den Mund nicht so leicht. Man könnte sogar eine trink Erinnerung einstellen.
D**Y
Muy contento
Mantiene muy bien la temperatura si la bebida está ardiendo. Si la bebida está a una temperatura caliente pero que te la puedas tomar sin quemarte, entonces mantiene muy poco la temperatura y se queda templada rápidamente. Es justo al contrario de lo que pone en las fotos, cuanto más caliente más tiempo dura (es que es algo obvio). A temperatura templada más rápido se enfría. El tapón muy práctico para ver la temperatura. Y la alarma programable que te recuerda cuando beber es muy útil si eres de los que bebe poca agua y deberías beber más.
C**N
Notice anglais
Bon produit mais notice en anglais exclusivement,pas top.
Trustpilot
2 months ago
1 week ago