Vsitoo 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

I have a complicated relationship with "smart" devices. For years, I dismissed the entire category of the smart coffee mug as the apex of unnecessary luxury. A heated mug? It seemed like the ultimate first world problem. My coworker, a man I respect deeply, had been a longtime user of an Ember coffee mug. While he enjoyed it, his complaints were consistent: "It's a bit delicate," and "I wish the battery lasted through my long lectures." When his department got a few VSITOO S3 Pro Smart Mugs for a product testing lab, he brought one over to me. "Try this," he said. "I think this is more your speed." He was right. After one week of using his lab sample, I immediately ordered my own. My initial impression was that this was a tool designed for an adult. The VSITOO S3 Pro has a utilitarian elegance that appealed to me instantly. The brushed stainless steel version I purchased is stunning. It lacks any flashy logos or gimmicky design elements; it's all clean lines and profound solidity. The premium construction is palpable. The 316 stainless steel feels indestructible and inert, promising no flavor transfer. The IPX7 waterproof rating was a major selling point for me, as I often rinse my mugs hastily between cups. Knowing the electronics are fully sealed against water damage is a significant relief. The lid, with its secure locking mechanism, is a masterpiece of design. I can toss this heated travel mug into my leather briefcase alongside my books and laptop with absolute confidence. It has survived being knocked off a lectern by an errant cable onto a linoleum floor without a dent or a scratch, a testament to its scratch-resistant coating and robust build. My daily routine is a perfect crucible for testing any temperature control mug. My days are busy, solitary research hours and back-to-back. Before the VSITOO, my coffee consumption was binary: I would either chug it quickly before a commitment or abandon it to its cooling fate, only to rediscover it later as a cold, forgotten relic. This self heating mug has revolutionized that dynamic. My new ritual is simple: I brew my tea or coffee, pour it into the mug, and set my desired temperature via the tactile single-touch button—138°F for my black tea, 145°F for my afternoon coffee. I can then walk to a 90-minute faculty meeting, and here is the miracle: when the meeting concludes, my tea is still at 138°F. It is not "warm." It is perfect. The smart temperature control is so precise that it preserves the entire character of the beverage. A delicate Darjeeling doesn't get stewed; it remains floral and nuanced until the final sip. The comparison to the more well-known Ember Mug 2 is not just favorable for the VSITOO; it is stark. The reliance of the Ember on its charging coaster feels like an archaic limitation. The VSITOO S3 Pro, with its long-lasting internal battery, offers true freedom of movement. I can carry it from my office, to the library, to a seminar room across campus, and it is a self-contained, perfectly heated system. The promised 2-4 hours of heat is not marketing fluff; I consistently achieve a solid 3.5 hours, which is more than enough to cover even the most protracted academic deliberations. As a heated travel mug for navigating a large university campus, it is peerless. Furthermore, the durability is in a different league. The stainless steel interior doesn't stain or retain odors like the coated interior of my colleague's older Ember Mug. This heated coffee cup is built not for a product lifecycle, but for a decade of daily use. The AI sensor that automatically initiates heating is genius precisely because of its simplicity. You do not need to be technologically adept to use this mug. It possesses an intuitive intelligence. The coffee cup warmer functionality is entirely autonomous. And the critical safety features the auto-shutoff and the dry-boil protectionism mean I operate with zero cognitive load. I never worry about leaving it on. It is a truly "set it and forget it" device that delivers relentless, unwavering performance. This temperature control smart mug has transcended its status as a gadget. It has become a seamless, integrated part of my professional life, a small but profound pillar of consistency and quality in an otherwise chaotic schedule. It is a product that earns its five-star rating not through flashy features, but through flawless, thoughtful, and robust execution.

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.