Customer Ratings & Reviews

The Ember tumbler is a very well-built product that does exactly what it says it does: keep your beverage hot for an extended period of time due to a built-in heating element. The product is high quality, it feels really good in the hand. Included with the tumber are two tops, one is the handle you see in the picture which unfortunately does not allow for drinking. The other is allows for drinking - it has no handle. It has a slot that opens and closes allowing you to drink / save heat. The best part of this top is that the drinking apparatus is removable and can be cleaned. Unfortunately, the only way to operate the mug is through the app. Without the app, it is just a glorified mug, ALTHOUGH, if you setup the mug initially in the app, it will remember your settings going forward so in reality, as long as the mug is charged, you will never have to use the app after the initial setup. It just becomes a nice means of tracking the battery life and controlling the temperature if necessary. The app is nice, I will say. They say coffee is 135 degrees. In reality, coffee direct from a drip coffee makers is at 165 degrees. After adding a little milk from the fridge it drops to 145 (tested with a thermometer). As a result, I pushed the temperature control above 135, which maxes out at 145, which matches what I make with the drip coffee maker plus milk. I did some tests for battery life. If you attempt to use this product to heat a drink from cold, you will get 1 hour of battery as the heating element is using too much energy. I heated 66 degree tap water and the battery was exhausted after an hour and the water topped out at 120 degrees. I mean, it isn't terrible but 120 isn't hot enough for those who like hot drinks. If you use the device as intended, that is, putting in a hot drink and keeping it hot, you will get upwards of 4 hours. I put in 165 degree water from a tea kettle and the Ember tumbler kept it hot for 3 hours at the max (145) setting. I assume that if you do lower temperatures you will get longer battery life. Of course you can always use the device while its charging. The charging mechanism is a pad that has some charging rings on it. It allows for any orientation of the mug. I.e. it doesn't have to be facing one particular direction. I would have preferred a much more visible LED indicator. It is a very small one at the bottom of the mug. The app lets you change its color, but that is just a novelty. Overall, I give the product itself 5 stars, but at $200 I have to knock it down a star. You can get a super high quality thermos-style mug for much less, which is all most people need as they intend to drink their beverage not too long after putting it in the mug, at least that is my intention. Even in the case where I consume my beverage later, I am usually near a microwave to reheat it. As such, I think it's a great quality product and unique concept that some people may find useful but I can't recommend it.

Looks plain and simple but the build is solid with aluminum, plastic and the bottom has rubber/silicone to keep it from sliding. It comes with a charger/coaster, a screw on lid with a handle and a non screw on lid with a sliding cover. With the tumbler full of water, It took 1 hour 20 minutes to warm the water from 70 - 135 degrees Fahrenheit while on charger. It took about 3 minutes to go from 125 to 135 and consumed 3% battery. Maintaining the 135 degree temperature in my room temperature of 74 degrees for 15 minutes took 18% of battery. After sipping my coffee for 30 minutes, the battery level went from 94% to 60%. This is without using the lid. Battery life is good enough for my needs. There’s a power button on the under side of the tumbler but I haven’t figured its best use yet. If you set the heater off in the app, the power button is pretty useless. I think some button gestures should be added like a double tap that would turn the heater on to your desired temperature. Come on Ember! Without the app, there’s no way to change the temperature from the factory setting of 135 degrees. There’s a status LED at the bottom of the tumbler. The LED breathes white while it warms up to temperature you set. Solid white when the set temperature has been reached. You can change the color of the LED to your preferred color so that you can easily tell that it is your cup. It only shows that color when the heater is not on though. With the heater off, the preferred color will glow every time you move the cup. This cup will help me keep my coffee warm in my office where the AC is always on and now I can take my time sipping on it.

This item was charged fraudulently to my credit card

I love coffee… anything that makes that drink better…I love that too and Ember keeps my coffee temp right where it needs to be AND I love Ember for that! What a great product! Got my Ember 16 Oz and downloaded the app. Super easy set! charged it up for the first morning run the next day. 5 am came too early as it usual does but I was excited to use the Ember. Brewed a pot of my finest grounds and poured it in the Ember. It’s smart, it turned on when I poured my coffee and turned off when I finished it. Really cool! I love that I don’t have to take my cup back to the microwave a couple of times as I had to in the past…or when the coffee is sitting in the craft but doesn’t quite stay hot enough with the craft warner so I would have to microwave…. Those days are long gone! Ember had a consistent temp the whole time I enjoyed my morning coffee!!! You can also set it on the charging coaster and get the right temp all day if you’re a coffee junkie like me! I also liked the two lid options. The handle is great for pouring a cup of coffee and storing it in my bag as I head out the front door for work with no leaking! The sipper is great for sipping from the get go! Both lids are dishwasher safe but you need to handwash the Ember. It is IPX7 which means you can submerge in water to wash. With coffee I usually just rinse it out but it’s nice not to have to worry about shorting it out with water! It looks sharp and feels great in the hand. Over all if you are a Coffee person or any hot beverage person, this is a MUST HAVE! It really keeps the first sip as good as the last! LOVE IT! I wish they made an Ember cooling tumbler as well for my beer! Can’t go wrong with Ember!

The packaging was simplistic and easy to unbox. As you unpack it you come across instructions and warnings. It comes with two lids. One being a handle that twists off. The other being good for sipping. I prefer using the handle because I will walk around work with it. It is a good and bad thing that I had to download the app. I wish it just kept my drink warm without the app. However, the app tells me the charge of the product, allows me to adjust the temperature and keeps track of how much caffeine I had for the day. It is the perfect size, not too big and not too small. The lights on the outside of the mug describe whether it is charging or charged. The lights also show if the temperature is ready to drink at my desired temperature. I did have one weird day with it so far. It told me the battery was low after taking it off the charger 45 minutes prior. The first few days I was able to let it sit in the office for a couple hours and then receiving that message. I wish I knew what level the low charge was. On the app it does not give me a percentage. The product mentions it auto turns off but I'm still unsure if I'm doing something wrong. I am hoping this one day was just a fluke because so far it has become my favorite tumbler.

It keeps my hot beverage at just the right temperature, it easy to use, and I think it as a cool, sleek look. Design The Ember Tumbler has a sleek rounded look all around. I think it looks very good, and normal, not like it has a battery and a heating element in it. There is a LED on the base but even that doesn't really stand out. The body of the has a mat finish and doesn't show fingerprints. It comes with two. Each have a smooth, shiny plastic finish. The bottom has a power button in the middle with two concentric metal rings around it so it will charge when turned any direction on the charging base. But the bottom of the tumbler has some extra weight from what I would guess is the battery and other components. That helps to make it more stable than you may think. Features You will want to install the app. It enables the key features and allows you to see the battery level, temperature, and adjust the temperature. Among other things. You need to give it 10 or 20 seconds sometimes to notice a change, like when you pour a drink in or turn it on for it to tell if it's empty or not. But it works great. It will tell you the current temp and you can select a preset item/temp combo, or edit any of those. For instance, they have Latte at 131 degrees (F), Coffee at 134, and Green Tea at 137. There is also a timer for Steeping your tea. There's even a link that takes you to a handful of beverage recipes. It does a great job maintaining the temperature for a 2 to 3 hours. It's sort of weird at first actually when every sip you take, even after 2 hours, is still hot. I've been a bit sick the last few days and mostly used it with tea. I'm used to drinking my tea cold after a while but have really been enjoying it hot to the last drop! It's great that the tumbler detects when it's empty and shuts off so I need to to worry about wasting the battery or running it dead if I don't turn it off right away. Lids There are two lids that it comes with. One screws on and off, as you may expect, and has an easy to grab handle. The other lid presses on and pulls off. The second has a slide to have it closed or open to reduce spilling or to drink from respectively. I said reduce spilling because, unfortunately, it didn't prevent spilling for me. It just slows the rate that your drink comes out at. I think that's pretty common in general but I was hoping they got it perfect on the Ember. I do like the design of the slide in that it locks on from underneath the lid. You can unlock the sliding mechanism to completely clean it and it will not fall off when you drop it. It just doesn't completely seal when closed. I normally use the lid with the handle because I really like the handle to carry it. Charging Base The charging base works well. The spot for the Tumbler is recessed so it would be hard, maybe not even possible, to put the Tumbler in wrong and have it not charge. The power cord is about 6 feet long and has "brick" attached to the plug that goes in the wall outlet. Summary The Ember 16 oz Tumbler is an excellent choice if you want to have your hot beverage kept a just the right temperature for an extended period of time. It does that very well and, like I mentioned before, it's almost strange that the drink never gets cold! It works very well and the app is simple and makes it easy to see and control the temperature. I normally use the lid with the handle but was pretty disappointed that the lid with the slide is not water tight. It's slows the liquid from coming out a lot but it's a lot more than a few drips that still comes out. Because of that I have to give this four stars. Still, the Ember Tumbler does what it says and does that very well!

I have heard great things about Ember products, and my path is different than most where my Ember path started with the Ember baby bottle system vs the coffee/hot beverage products that most users are familiar with. The Ember baby bottle system is a winner, however the Ember Tumbler fails as a Tumbler. I’ll start with the good and slowly descend into why the Tumbler fails. First and foremost the aesthetic design is pleasing, and the charging system is simple and straight forward. Download the Ember app if you want to be able to adjust the temperature settings or don’t download the app and have the Tumbler default to warming any liquid to 135 Fahrenheit/57.2 Celsius. If you decided to download the app you can change the status light on the Tumbler to any color you desire. Plug in the charging puck into the outlet and think of it as a charging coaster that can maintain the temperature of your hot beverage indefinitely. You get two lids to those from, a leak proof lid that acts as a handle (you have to take the lid completely off in order to take a sip) and a spill proof sliding lid (easiest to use for quick sips). There is nothing more to the Tumbler other than to pour in your hot beverage of choice. The liquid will cool down or heat up according to your heat preference or default to 135F/57.2C if no preference was selected. The Tumbler automatically starts working and will automatically shutoff if there is not liquid detected. All of these features are very nice and what is expected from a smart tumbler. Ember states you get 3 hours of battery life from the integrated battery but I was only able to get 2.5 hours at most using the default temperature and in an indoor environment. One minor issue I found is it is hit or miss on whether or not this tumbler will fit in your car’s cupholder. In my truck the Tumbler fits, but in my wife’s car it does not. Now for the biggest issue, I brewed black tea at the recommended temperature of approximately 212F/100C in the Tumbler as anyone has done in a basic mug or tumbler and found the Tumbler too hot to hold. I expect this from a ceramic mug which is why there is a handle, but I do not expect this from ANY stainless steel tumbler. A Tumbler should be able to provide proper insulation so that I can hold it without it being uncomfortable at high brewing temperatures. I tested my $5 no name brand tumbler and I had no issues with holding it while brewing at 212F/100C. For this reason the Ember Tumbler completely fails. There needs to be more insulation in order to retain the heat. I understand that too much insulation could prevent the ember from adjusting the temp up and down as easily, but there is no excuse for the Tumbler to be too hot to hold. I asked five people on separate occasions to pass me the Tumbler once I had let the 212F/100C water sit in it for about a minute. I did not tell them about the issue I was having, I simply wanted to see if I was being too sensitive to this issue. All five picked up the Tumbler, walked across the room and asked my why the Tumbler was so hot. As much as I like the tech in this, I could never recommend this to anyone since it cant function as a basic Tumbler.

16oz uh yes. I use this daily. My work from home desk buddy. Splurge for the extra coaster. I jjst carry it from one room to the other. Coffe fresh and hot all day. Does not scorch or burn. Last drop tastes as fredh as the first.

A couple weeks into using the tumblr and it seems to be working well! Keeps coffee the perfect temp for hours and has been easy to maintain! Very please :)

Ember is great, i saw bad reviews for the travel mug but this tumbler is amazing

I love all the Ember mugs; this is great for on the go

My grandmother has been using this almost everyday and she has been loving. My grandfather has even been asking for one with how convenient it is!

The price? Ouch. What happened to pouring hot liquid into a thermos and having it still be the right temperature hours later. At a fraction of the cost.

I received the coffe mug as a Christmas gift. It did wonderful until a few days ago and the app started crashing and my phone would shut down everytime I tried to reinstall the app. With no other way to heat up your beverage this mug is useless!! I feel bad for the person who bought it for me, because we don't have the receipt or the box, a waiste of money!