Well, well, well... what have we here? Amazon just announced the best-selling deals of Prime Day 2019 day 1, and if we're being perfectly honest, they're pretty surprising! To clarify, not all of Monday's Prime Day best-sellers are a shock. In fact, three of the four best-sellers are pretty obvious. The Fire TV Stick with Alexa Voice Remote dropped to a new all-time low price of just $14.99, which is absolutely nuts for a terrific streaming media device that retails for $40. Equally impressive is Amazon's Echo Dot deal for Prime Day, which slashes the price from $50 down to a new all-time low of $22.Next up we have the Instant Pot DUO Plus 60, which was also destined to be a best-seller since Instant Pots are always popular when they're on sale, and this model just hit a new all-time low of $55.99 today (UPDATE: the DUO Plus 60 is now sold out, but the DUO60 dropped to a new all-time low of $49.99!). But the fourth item on Amazon's list? Now that's a surprise: the LifeStraw Personal Water Filter. Are there really that many people out there who go hiking and camping deep in the wilderness? Hey, better safe than sorry, and at $9.89 you really can't go wrong.Did you get all of Amazon's best-sellers from Prime Day 2019 day 1? If not, don't worry because they're all still on sale. You'll find each item below so you can learn more about it, and you'll find all the best deals so far from Prime Day 2019 in our extensive Prime Day deals roundup. Fire TV Stick with Alexa Voice Remote (Includes $45 Sling TV credit) * Amazon Exclusive: Buy today and get $45 Sling TV Credit. Start streaming live TV for as low as $10 a month for 3 months, up to 60% off regular package prices.. * Our best-selling Fire TV Stick, now with Alexa Voice Remote (2nd Gen). Use the dedicated power, volume, and mute buttons to control your TV, soundbar, and receiver. * Launch and control content with the Alexa Voice Remote. Watch favorites from Netflix, YouTube, Prime Video, STARZ, SHOWTIME, or CBS All Access, plus stream for free with Pluto TV, IMDb TV, and others. * Fire TV Stick devices have more storage for apps and games than any other streaming media stick. * Alexa on Fire TV provides the most comprehensive voice experience of any streaming media player--view live camera feeds, check the weather, dim the lights, and stream music. * Amazon Prime members get unlimited access to thousands of movies and TV episodes, plus ad-free listening to millions of songs with Prime Music. * No cable or satellite? No problem. Watch live TV and sports with subscriptions to Hulu, PlayStation Vue, and others. * Switch seamlessly between your headphones and sound system--pair compatible Bluetooth headphones with Fire TV to listen to movies, TV shows, and music. Echo Dot (3rd Gen) * Our most popular smart speaker - Now with a fabric design and improved speaker for richer and louder sound. * Voice control your music - Stream songs from Amazon Music, Apple Music, Spotify, Sirius XM, and others. You can also listen to audiobooks from Audible. * Bigger, better sound - Pair with a second Echo Dot (3rd gen) for rich, stereo sound. Fill your home with music with compatible Echo devices in different rooms. * Ready to help - Ask Alexa to play music, answer questions, read the news, check the weather, set alarms, control compatible smart home devices, and more. Echo Dot is designed around your privacy. You can press the microphone off button to disconnect the microphones. * Connect with others - Call almost anyone hands-free. Instantly drop in on other rooms in your home or make an announcement to every room with a compatible Echo device. * Use another speaker - Connect to your own speakers over Bluetooth or with a 3.5 mm audio cable. * Alexa has skills - With tens of thousands of skills and counting, Alexa is always getting smarter and adding new skills like tracking fitness, playing games, and more. * Voice control your smart home - Turn on lights, adjust thermostats, lock doors, and more with compatible connected devices. Instant Pot DUO Plus 60 * REPLACES UP TO 9 APPLIANCES: Combines 9 kitchen appliances in 1 to save you space, including: pressure cooker, slow cooker, rice cooker, yogurt maker, egg cooker, saute, steamer, warmer, and sterilizer. * 15 ONE TOUCH COOKING PRESETS FOR QUICKER COOKING: Soup/Broth, Meat/Stew, Bean/Chili, Cake, Egg, Slow Cook, Saute/Simmer, Rice Cook, Multigrain, Porridge, Steam, Sterilize, Yogurt, Keep Warm, and Pressure Cook. * SAVES TIME: Cook up to 70% faster and clean up easily. One pot cooking & cleaning. * EASY TO CLEAN: Fingerprint-resistant stainless steel lid and components and accessories that are dishwasher safe: inner pot, steam rack with handles, serving spoon, soup spoon, and measuring cup * SAFETY: Ul certified - is one of the highest standards of testing and certification with 10 safety mechanisms for peace of mind. * Power supply 120V - 60Hz - Please check your voltage if not in North America. LifeStraw Personal Water Filter * Removes bacteria & parasites: The microfiltration membrane removes 99.999999% of waterborne bacteria (including E. coli and salmonella), and 99.999% of waterborne parasites (including giardia and cryptosporidium). * Removes microplastics: Removes the smallest microplastics found in the environment (down to 1 micron), and reduces turbidity down to 0.2 microns. * Rigorous Testing: All claims are verified with laboratories using standard testing protocols set by the US EPA, NSF, ASTM for water purifiers. * Long Lifetime: The microbiological filter will provide 4,000 liters (1,000 gallons) of clean and safe drinking water with proper use and maintenance * Make an Impact: For every LifeStraw product purchased, a school child in need receives safe drinking water for an entire school year.