– S3 Pro 16oz Self Heating Coffee Mug Auto-Sense Heats to 120-150℉ | 2-4 Hour Battery, 5400mAh, IPX7 Waterproof, 316 SS, Rechargeable, Auto On, 1℉ Precision, Cordless, Gift for Women Men

This product stopped working in less than four months ! It won't charge any more and these kind of Chinese products aren't easy to repair any where. Nor the seller or the company care to respond or provide feedback ! And the supposedly touch button never ever worked !

I bought it last december.. after 4 months charger is not working... now i can't charge my mug anymore.. it is just an ordinary mug for the price of a smart mug.. not worth it

Let me paint you a picture of my pre-VSITOO life. I transitioned to working from home full-time over five years ago and while I love the flexibility, it completely destroyed my coffee ritual. I'm a coffee enthusiast. I grind my own beans, use a precision brewer and the entire process is a morning meditation. But then, reality would hit. I'd pour that perfect, steaming cup of coffee, carry it to my desk and take that first, glorious sip. And then, the inevitable would happen. An urgent email would land and I would get sucked into the vortex of work. I'd return to my desk, reach for my mug and be met with the profound disappointment of cold coffee. My solution? The microwave. I knew it was a cardinal sin, a practice that utterly murdered whatever flavor remained, but I was desperate. This was my daily cycle: brew greatness, then systematically destroy it. I knew about smart mugs. A colleague had an Ember Mug 2 and swore by it. I was tempted, but the reviews about its short battery life and fragile ceramic coating gave me pause. It seemed like a product with a great idea but flawed execution. Then, during a deep dive into alternatives, I discovered the VSITOO S3 Pro Smart Mug. The specifications stopped my scroll: dual-walled 316 stainless steel, a scratch-resistant coating, a promised 2-4 hour battery life, and an IPX7 waterproof rating. This sounded less like a fragile gadget and more like a serious piece of equipment. The mention of it being a heated coffee mug rechargeable via USB-C was also a plus. I decided to take the plunge and I can say, without a shred of hyperbole, that it has fundamentally transformed my daily work life. The unboxing experience immediately set the tone. This wasn't packaged like a disposable gadget; it felt premium. The mug itself, in the matte black finish I selected, was a vision of understated elegance. The first thing I noticed was the weight and solidity. It has a satisfying heft that communicates durability without being cumbersome. The dual-walled 316 stainless steel construction isn't just a bullet point on a box; you can feel it. It feels robust, like it could withstand the minor bumps and knocks of daily life. The exterior coating is smooth yet grippy, and it just feels expensive. The lid was a particular point of admiration. It clicks into place with a definitive, resonant snap that screams precision engineering. I conducted an immediate leak test—vigorously shaking it over the sink—and not a single drop escaped. This was a heated travel mug built for the real-world journey from my kitchen to my home office, not just for sitting statically on a coaster. The true magic, however, begins the moment you pour your coffee in. The built-in AI sensor is so seamless it feels like witchcraft. There is no fumbling for a button or opening an app. You simply pour your freshly brewed coffee and within seconds, you can feel a gentle, uniform warmth emanating through the mug's walls. It’s an "it just works" moment that is incredibly satisfying. I am a creature of habit and I've found my sweet spot at 142°F. It's hot enough to feel deeply comforting and release the aromatics, but cool enough to sip comfortably without any scalding. Using the single-touch button on the mug's base is intuitive; a quick press cycles through the temperature presets and the LED indicator is clear and unobtrusive. While the physical button is fantastic for quick adjustments, the Vsitoo app unlocks another layer of precision. Pairing was instantaneous. Through the app, I can set the temperature to the exact degree, monitor the real-time temperature of my beverage and most importantly, extend the auto-shutoff timer to the full 4 hours. Watching the app maintain a perfectly straight line at 142°F is a thing of beauty for a data-driven person like me. The smart temperature control is the star of the show. It’s not merely "keeping it warm"; it's actively maintaining a precise, optimal drinking temperature. For the first time, my coffee is not just a beverage that starts hot and ends cold; it's a consistent, perfect experience from the first nuanced sip until the very last, even if that last sip is two and a half hours later. This is where the comparison with my colleague's Ember Temperature Control Smart Mug 2 becomes inevitable. The VSITOO S3 Pro isn't just a competitor; it feels like a generational leap. The most significant advantage is battery life. My colleague constantly laments how his Ember mug needs its charging coaster after about 90 minutes. The VSITOO, on a full charge, consistently delivers 3.5 to 4 hours of continuous heating at my preferred temperature. This is a monumental difference. It means I can go through my entire morning deep-work session without a single thought about power. The switch from a ceramic-coated interior to the industrial-grade 316 stainless steel is a game-changer for maintenance and longevity. His Ember stained easily and eventually chipped. My VSITOO wipes completely clean with a simple rinse and shows zero signs of wear after two months of heavy use. The scratch-resistant coating on the exterior is equally impressive; it still looks as pristine as the day I unboxed it. The intelligent safety features provide a profound sense of peace of mind. The dry-boil protection has activated on at least three occasions when I was pulled into a marathon conference call and forgot I had finished my coffee. I returned to my desk to find the mug cool to the touch and a notification in the app. It’s this thoughtful engineering that elevates it from a simple coffee cup warmer to a truly smart appliance. It protects itself and by extension, my desk and home. The automatic shut-off, which I have set to 2 hours for safety, means I never have that nagging anxiety that I've left an electric coffee mug on while I've stepped away. In conclusion, the VSITOO S3 Pro has done more than just keep my coffee hot. It has restored the integrity of my morning ritual. It has given me the freedom to become immersed in my work without sacrificing one of my life's small, daily pleasures. It is, without question, the most impactful and satisfying product I've purchased this year. For anyone working from home who views their coffee as more than just caffeine, this self-heating coffee mug is not an indulgence; it's an essential tool for a better quality of life. It has made my previous skepticism about smart mugs feel utterly foolish.

Very good for work time, the quality is good👍🏼

O vendedor cumpriu exatamente o descrito. Dele eu não tenho o que reclamar. Já o produto achei bem ok considerando o valor. Bateria dura pouco. Toda vez que você usa, tem que carregar. Para manter a bebida quentinha, tem que manter a temperatura no 60, se não a bebida fica morna/temperatura ambiente. Na primeira lavagem, a tampa já ficou manchada, isso que nem usei a parte abrasiva da bucha, usei a parte macia. Resumindo, o produto funciona, mas não é essas coisas todas. Não compraria novamente.

Tuve que comprar una segunda por avería en la primera. Pero me han ofrecido un recambio. Estoy muy contento con el producto. Es genial y perfecto para la oficina.

The mug is nice and work like a charm. But the battery is about 3 hrs on 50degree C.. shorter on 60c. Great support and customer service.