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☕ Elevate every sip with smart warmth that keeps pace with your hustle.
The VSITOO S3 is a 12oz smart heated coffee mug featuring AI beverage detection that auto-starts heating, ultra-precise temperature control adjustable in 1°F steps from 120–150°F, and 2–4 hours of cordless battery life. Crafted with durable 316 stainless steel and equipped with multiple safety features including dry-boil and overheat protection, it offers a premium espresso-friendly size and seamless app/button control for a perfect, warm coffee experience all day long.






















| ASIN | B0DJR8QKZD |
| Best Sellers Rank | #432,870 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #123 in Tea & Espresso Beverage Warmers |
| Brand | VSITOO |
| Brand Name | VSITOO |
| Capacity | 12 ounces |
| Color | Black |
| Customer Reviews | 3.9 out of 5 stars 152 Reviews |
| Item Weight | 2 pounds |
| Lower Temperature Rating | 120 °F |
| Manufacturer | vsitoo |
| Manufacturer Part Number | S3-B |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Maximum Temperature | 150 °F |
| Model Number | S3-B |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Unit Count | 1 Count |
| Upper Temperature Rating | 140 °F |
B**B
Forget the Hype, This is the Real Deal. The VSITOO S3 Saved My Sanity During Late-Night Feedings.
My life runs on two things right now: coffee and a baby's unpredictable schedule. As a new mom on maternity leave, my coffee consumption has become less of a leisurely ritual and more of a critical fuel source. The problem was, my coffee was always going cold. I'd brew a cup, take one sip, and then my son would need a diaper change, or to be fed, or just to be rocked. An hour later, I'd be back in the kitchen, staring sadly at a full, cold mug of coffee. I'd microwave it, knowing I was ruining it, but desperate for that warm caffeine hit. I’d seen the commercials for the Ember coffee mug, but it seemed like an extravagant purchase. A friend, who is also a mom, told me her Ember Mug didn't last long enough for her chaotic days. She then pointed me to the VSITOO S3 Smart Mug, specifically highlighting its longer battery life and durable build. I took a chance, and it has been nothing short of a lifesaver. The first thing I appreciated was how straightforward it is. You don't need to be a tech wizard. The mug feels solid and well-made in your hands. I got the white one, and it has a clean, modern look that fits right in on my kitchen counter. The scratch-resistant coating is a must with my hands always full of baby lotion, wipes, and who knows what else. I've knocked it against the counter a few times, and it still looks new. The lid is my best friend—it clicks on so securely that I never worry about spills, even when I'm carrying it with one hand while holding my baby in the other. This heated coffee cup is clearly built for the real world, not just a pristine office desk. The AI Smart Heating is the star of the show for a parent. I pour my coffee, and I don't have to do another thing. The mug senses it and starts heating automatically. I usually just use the simple button on the mug itself to set it to 140°F—my perfect "can-sip-it-now-but-it's-still-warming" temperature. Then, I walk away. It doesn't matter if I'm gone for twenty minutes or two hours. When I finally get a moment to myself, I can pick up that self-heating coffee mug and take a glorious, warm sip of coffee. It’s a small thing, but that consistency, that one reliable pleasure in a day of chaos, is incredibly powerful. It feels like the mug is on my team, working in the background to preserve a little piece of normalcy for me. I have to compare it to my friend's experience with her Ember Mug 2. She constantly complains about the battery life, saying it dies just as she's getting settled. The VSITOO heated coffee mug rechargeable battery is a game-changer. I charge it overnight, and it lasts all day. I'm not exaggerating. I might have three or four separate cups of coffee or tea throughout the day, and the mug still has juice left by the evening. The boil-dry protection has also been a blessing. In my sleep-deprived state, I've left the mug on after finishing my drink. Knowing it will safely shut itself off instead of overheating is a huge weight off my mind. The IPX7 waterproof rating means I can wash it quickly and thoroughly without a second thought, which is essential for hygiene with a newborn in the house. This VSITOO S3 was worth every single penny. It’s not a luxury; in my current life, it’s a necessity. It has single-handedly solved one of the most frustrating daily problems of new motherhood. It’s durable, intelligent, and relentlessly reliable. If you are a parent, a caregiver, or anyone whose attention is constantly being pulled in a dozen directions, this temperature controlled mug is your answer. It’s a truly thoughtful product that understands real-world use, and I am so grateful for it.
M**E
As a Techie, I'm Blown Away. The VSITOO S3 is the Smart Home Upgrade My Coffee Deserved.
I'll be the first to admit it: I have a problem. I am a productivity and tech optimization nut. My entire home runs on a smart ecosystem, from the lights to the thermostat, all meticulously programmed for maximum efficiency and comfort. But for years, one daily irritation remained unsolved: the tragic lifecycle of my morning coffee. I'd brew a pour-over, savor the first perfect sip at 145°F, and then watch helplessly as it descended into lukewarm mediocrity. I was aware of the Ember Mug 2, but its reputation for limited battery life and delicate build kept me from pulling the trigger. It felt more like a novelty than a robust tool. When I dug deeper into the smart mug category, the VSITOO S3 Pro Smart Mug kept appearing, with specs that read like a tech spec sheet. I decided to put it to the test, and after two months of rigorous use, I'm ready to declare it one of my most impactful smart home additions. The unboxing felt appropriately premium. The mug itself, in the sleek "slate gray" I chose, is a minimalist's dream. It’s all clean lines and a matte, scratch-resistant coating that feels fantastic to hold. The build quality is immediately apparent. It has a confident weight, signaling the premium construction without being a burden. The 316 stainless steel interior isn't just for show; it gives the mug a feeling of indestructibility that a ceramic-coated competitor lacks. The lid is a engineering highlight—it doesn't just sit on top; it seals with a precise, magnetic click that screams quality. I've carried this heated travel mug from my home office to my backyard and back, and its leak-proof promise has held absolutely true. The "smart" part of this smart coffee mug is where the VSITOO truly shines for a user like me. The integration is seamless. Charging is via USB-C, and the pairing process with the app was instantaneous. But the real magic is the AI sensor. You pour in your coffee, and the mug just… wakes up. It’s a beautifully simple, zero-friction interaction. No button to press, no app to open. It intelligently recognizes the presence of a liquid and gets to work. I live by data, and the VSITOO app is a data-lover's dream. I can watch the real-time temperature graph, set my desired temp to the exact degree (I'm a 142°F guy for my light roast), and monitor battery percentage. The precise temperature control is astounding. I've tested it with a separate thermocouple, and it holds within a single degree of the set point. This isn't a coffee cup warmer; it's a precision laboratory instrument disguised as an elegant mug. Let's talk about the comparison. A colleague of mine has the Ember Temperature Control Smart Mug 2. The differences are stark. The most significant for my workflow is battery life. His Ember mug famously lives on its charging coaster, offering about 80 minutes of cord-free use . The VSITOO heated coffee mug rechargeable battery, by contrast, is a marathon runner. On a full charge, I get a consistent 3.5 to 4 hours of active heating. This means it lasts through my entire morning deep-work block, from 7 AM to my lunch break, without a single thought about power. It provides true mobility around my home and home office. Furthermore, the 316 stainless steel interior of the VSITOO is a practical win over the ceramic coating of the Ember. It doesn't stain, it's easier to clean, and it feels more resilient against daily wear and tear. The dry-boil protection is another intelligent feature. I can't count how many times I've been pulled into an urgent video call and returned to find the mug has safely powered down, preserving both its components and my peace of mind. In conclusion, the VSITOO S3 has seamlessly integrated into my life. It has eliminated a daily micro-frustration I didn't realize was having a cumulative effect on my morning ritual. It’s a device that doesn't just promise smart features; it delivers them with robust reliability and thoughtful design. For any tech enthusiast or anyone who views their coffee ritual as sacred, this temperature control smart mug is an unequivocal recommendation. It has outperformed my high expectations and proven itself to be a mature, well-executed product that genuinely enhances my day.
J**.
Nice design - Great mug!
I am really happy with this smart mug. The design is sleek, and it feels high-quality in your hand. It keeps my coffee at the perfect temperature all morning long while I work, which is exactly what I needed. The battery life is great, and the app is very intuitive and easy to connect. It is definitely a game-changer for anyone who hates when their hot drinks go cold too fast. Highly recommended!
L**G
Stains that cannot be removed!
I bought this one during a sale. Initially it worked really well. My drink would stay warm, and I did not even need to use the lid. That lasted about two months. I bought another thinking I just had a bad one. Well the second would barely stay connected to my phone to adjust the temp through the app, I had Matcha Tea in one and the tea became stuck to the bottom. I could NOT wash it out. After scrubbing it, it stained green. It’s difficult to keep maintaining the temp while driving and after about two hours the battery is drained and needs to return to its charging pad. I guess it would be ok if you staying seated in your office all day and never needed to move around. I reached out to the seller because it was within the stated warranty only to be told to purchase another and I would get a credit after I reviewed the item. That doesn’t seem right. For the value, I would say, pay a little more for the named brand version. Two cups down in two years, and none are usable.
J**I
Internal thermometer is of by a lot.
Was really excited to recieve this mug since I am constantly putting my mug in the microwave to reheat. This product is one major disappointment after another. Most importantly the temperature is very inaccurate. The mug says it's 60c, but is really 48c. The same temperature of when I usually place my mug in the microwave to reheat. So from the start this solves nothing for me. Other annoyances include the following. The rubber bottom is fixed with double sided tape and is not squarely in place so mug wabbles on the table. The mug comes defaulted to celsius, which feels disrespectful and careless. When selling a product in america it should default to fahrenheit (yes we should switch to metric, but it's not happening anytime soon). Changing the default unit requires using a phone app, which I did not want to do. Got this mug since it advertised it was possible to use without an app. You can only change temperature (in celsius) without the app. 10oz is not enough volume. And finally, the power adapter is 15v, which rules out most USB adapters if you wanted to substitute it with something less bulky. Returning...
S**A
Perfect temperature control
Amazing Product. Really loved it. It keeps the coffee at perfect temperature.
S**E
Nespresso beware
Great and easy to use. A standard nespresso pod does fill it to the brim though. Switching to the size up for that reason.
R**W
A good self heating mug but ...
The mug has some issues. One is that the instructions have a big error. It says to hold down the button for three seconds to turn it on. In reality, it is over 8 seconds. The second problem is the app is poorly made. It will only work on certain phones. It is touchy about what version of Android you have and the age of the phone. The app was written for older phones. It would not work with my 2 year old phone but works great on my 4 year old phone. And one more problem, it may take over 4 hours to charge the first time. It came with the battery completely dead. That should never happen. It is not good for the type of batteries that are in the mug. Once it is charged all the way, you are set to go. At least on my mug, the battery seems to be OK in spite of this. So if you have "the right phone" and you hold down the button for closer to 8 seconds, the mug will turn on and the app will work. Don't forget to let it fully charge before the first use. Using the older phone, the mug has worked flawlessly. It does what it is supposed to do.
T**S
It’s the best smart mug you have all the time now enjoy
Game-Changer for Hot Drink Lovers! I’ve been using the VSITOO Temperature Control Smart Mug S3 for a few weeks now, and I’m genuinely impressed with how much it’s improved my daily tea routine. The temperature control is incredibly accurate—no more rushing to finish my drink before it cools down. Whether I use the manual controls or the app, adjusting the heat is effortless and surprisingly fun. The rechargeable battery is a huge plus. It lasts longer than I expected, and the mug keeps my tea warm for hours without needing to sit on a base. The LED light indicator is a nice touch too—simple, modern, and intuitive. The included lid is great for keeping my tea hot even longer, and the overall build quality feels premium and durable. I also love the sleek design; it looks great on my desk and is comfortable to hold. If you’re someone who’s constantly reheating your tea, this mug is absolutely worth it. The VSITOO S3 has genuinely upgraded my everyday routine—highly recommended!
L**O
Excellent product, but build quality needs improvement
I love this product! It's really easy to use. It keeps my coffee hot, to the very last drop. I am disappointed that the mug's handle joint has failed, after only 3 months of use. I hope that VSITOO will sort this for me...
H**S
Good at keeping your drink warm
I was really intrigued about this smart much and was excited to see how it may help me. I have a busy job and find that my coffee often goes cold so this was exciting as it possibly offers as solution. The device is really sharp in appearance. It looks well made and of high quality. It comes in three parts, consisting of a base, a mug and then the watertight lid. To use, the mug can be used on the base whilst charging or away from the base. By downloading the app and linking your phone to it, you get a wider range of settings and the ability to track the temperature. The app however is a bit glitchy and adding the mug was quite frustrating. After a reinstall though it finally worked. When you set the mug to heat or maintain heat, the app tracks the current temperature and displays it on the screen. This is in addition to telling you what target temperature you have set it to. To try it out I made my coffee and have sat with it for over an hour. It’s still 57•c at the time of writing this review. Essentially as hot as I’d normally drink it. Overall it is a really good idea but to be very honest cold coffee isn’t the biggest problem and I do find myself questioning whilst it is good, is it needed? I believe that as it has the ability to maintain warmth and heat that this is a great mug for commuting or for those with jobs that demand their focus moves throughout the day. A good product and I would recommend it if you believe it is something that would benefit you. It is a nice to have item.
A**R
اخترب بسرعه
ف البدايه اموره تمام بعدين صار مايشحن مو عارفه ليه
E**I
Love it.
It's easy to wonder about the genuine need for this type of product. I mean really, is it really necessary and does it make a difference in my life. Well, yes in fact it does, being a data analyst, finance analyst and app developer, it's easy to become so focused on the work that I'm always drinking lukewarm cups of tea and coffee. The product arrives in a neat package nice square box elegantly cellophaned. The product looks amazing and was so easy to setup I cleaned with a damp cloth downloaded the app and set the temperature. All very easy to do and with out issues. Now when I make a drink I have no fears about sipping cold coffee within the 30 minutes. The aesthetics of the product is also superb and it is certainly a conversation piece when we have visitors. Naturally keep out of the dishwasher but the product is simply amazing. On the app you can set the timer and temperature. And even a time if you want to keep the product full in advance. The product would make a good present also, as its fairly certain that the receiver won't have even heard of a smart cup let alone own one. Recommended.
Trustpilot
1 day ago
4 days ago