ASUS ZenScreen 15.6” 1080P Portable USB Monitor (MB166C) - Full HD, IPS, USB Type-C, , Tripod Mountable, Anti-Glare Surface, Protective Sleeve, 3-Year Warranty

I bought this because I travel a ton for work and pleasure and needed a way to match office efficiency. I got this portable monitor because of a sale during Prime Day, a free 3-year warranty, and the monitor has a built in battery, which was rare for portable monitors in this price range. I've used the monitor for close to 2 months and have enjoyed the use of it so far. Here are my opinions:The battery life is decent. I can use the monitor without charging for 4 hours. I wish the battery was better, but the charging output is the same as my computer so it's easy to switch from charging my computer to charging my monitor so it's not a big deal. It is important to note that the charger that came with the monitor is short and is not suitable for computers or monitors as outlets are usually closer to the floor than the top of a desk/table. The monitor sleeve is also decent and serves as an okay stand so I bought a foldable portable stand for $15 so that problem is solved. The monitor came with an adapter so that I can connect to my computer, the adapter is pretty small and is just the right size for me and my work needs. I did, however, buy a second longer adapter just in case I need it.The monitor is touch screen, though it seemed somewhat buggy to me. This didn't really impact me because I don't care for touch screens on my monitors and I just turned it off. The visuals are good and functionality of the monitor are great. I utilize the monitor to use different software and mapping tools for work and there is no lag/delay and are visually similar to what you'd get on any office monitor.Consensus: The monitor gets the job done and for the discount/warranty I got, it was an excellent deal. I either bought or had several parts in hand to improve my experience with the monitor (charger, portable stand, etc). For the purpose that this monitor serves me, I am very pleased. However I recognize that there are substantially better portable monitors, but they all cost considerably more than this one. I would buy this monitor again, but only during a huge sale like Prime Day or Black Friday. The monitor is fine, but it's not so amazing that you have to buy this very second. Do what I did and wait for the next big Amazon sale.

This monitor has been an absolutely game changer for travel. I do a lot of travel for work and always hated not being able to use a second monitor like at my home office. This monitor has absolutely changed that and made travel nearly as effective as working from home. It has great brightness and only requires a single USB C cable which I already carry so the setup is dead simple and there is no additional stuff to pack other than the monitor. This is hands down the best option for the money for anyone needing to travel.

I gave it four stars instead of 5 due to reliability.- ProsThe ZenScreen Touch is a sleek device, its small and slim 9mm profile, and fits easily into a backpack. It's great for road warrior on the who likes the convenience for a dual-screen work environment. It's also great for connecting it to your Phone (Not Compatible with all phones) to watch a movie or play a mobile game on a larger screen.The model with the built-in battery is great for when you are not close to a charging source.- ConsThere are only two ports on the ZenScreen Touch placed on the bottom left edge - a micro HDMI and a USB-C that supports DisplayPort and is the sole charging port. This means that if you use USB C as you primary connection, the source will be it's only the only option to power to the monitor. This is an issue when you have this connected to your laptop when you are not close to a power outlet. This will serverly impact your Laptop's battery life. There is an option built into the Monitor that will prevent the Zen screen drawing power from the laptop (the model with Battery option) which address this issue. If this is an issue, Asus does have a 17" ROG (Republic of Gamers) model that looks almost identical to this model with an additional dedicated USB-C charging port. (The ROG model also has high refresh hitting 144hz to 240hz.)This brings me to the biggest issue of the ZenScreen model with the internal battery. When I run the battery level down to 0%, The monitor will not turn on at all. Any electrical charged from the USB-C cable will be directed to charging the battery, so the monitor will be useless until it reaches a predetermined power level. This happened to me already, but I didn't take note of the minimal charge level before it could turn on. I think it is safe for me to say that it'll turn on around 5%-10% battery levels.Which brings up another issue. If you allow the battery to drop to 0% and forget to charge it, you may break your monitor. Lithium batteries tend to have minimal safe power levels. If the battery drops below that power level, it will disable itself and the battery is no longer useable. (This is actually a safety feature and is used in all devices using Lithium Batteries.)That means, your monitor will be stuck in the charging state and will not turn on again until the battery is replaced by Asus. Be very aware of this if you do not plan to use your Zenscreen for an extended amount of time. You should charge your device to 80% (not 100%) before storing it away.Although the battery model sounds convenient, I recommend buying the model without the battery.Final Advice. I'm an Asus Fanboy, particularly with their premium ROG lines of products. I feel that the Quality of Asus products has been dropping drastically. If Amazon gives you an option to purchase a protection plan for this monitor, I HIGHLY recommend buying it, and this is why;I've had my Zenscreen for almost 2 months, and now the Menu button is not working. I might have to RMA this.I've also purchased a $600 Asus ROG Motherboard, and it had two dead memory ports. Asus has issued an RMA for it under warranty. I'm planning to send it out later this month. I'm responsible for the shipping fee.I've purchased a $1000 Asus ROG Phone 2 in April and it was Dead in Box. I got it replaced by Amazon. Shipping paid by Amazon Prime.I've purchased a $300 Asus Twin View dock in May and it was dead inbox. Asus is issuing an RMA under warranty, I have to pay for shipping.Now I think my $300 Asus Ryojin AIO CPU cooler is malfunctioning, I am preparing to request for an RMA.