The JIMMY R9 Countertop RO Water Purifier transforms water purification into a smart, all-in-one experience—delivering seven-stage filtration, instant hot water in seven temperatures, and real-time TDS monitoring, all without any installation. With UV sterilization, dual pitchers, a sleek design, and easy filter maintenance, it’s a countertop essential for anyone serious about hydration, convenience, and quality.

If you told me a few months ago that I’d be geeking out over a water filter, I’d have laughed. And yet, here I am, standing in my kitchen like some kind of hydration sommelier, obsessively cycling through seven temperature settings and checking the TDS readout like I’m running a lab. The culprit? The JIMMY R9 Countertop RO Water Purifier. And let me just say: it’s not just a water purifier, it’s a lifestyle upgrade I didn’t know I needed.

Let’s start with what sold me immediately: no installation. I live in a rented apartment, and the thought of hooking up yet another under-sink monstrosity or paying for plumbing work is an automatic nope. The R9 just sits there on your countertop, looking sleek, modern, and suspiciously compact. We’re talking 9.9 inches deep—small enough to sit on the edge of my kitchen counter, a sideboard, or even on a desk. Just plug it in, fill the 5L tank, and you’re ready to go. Zero drilling. Zero stress.

Filtration That Goes All Out (Then Remineralizes!)

This isn’t your basic charcoal filter. The JIMMY R9 runs your water through seven stages of purification, including a 0.0001μm RO membrane. Translation: it kicks out 99.99% of all the bad stuff—PFAS, lead, arsenic, cadmium, chlorine, fluoride, you name it. Then, because RO water can taste a bit flat, it remineralizes the clean water using a coconut-activated carbon filter. The result? Water that tastes like it should cost $5 a bottle.

And if that wasn’t enough overkill (in the best way possible), the system adds UV sterilization at the end, keeping the purified water clean even after it’s been sitting in the tank. That level of redundancy? Kind of my thing.

Hot Water. Instantly. In Seven Flavors of Hot.

This might be my favorite feature: 3-second instant heat with 7 temperature options. I’m not talking about one lukewarm setting. I’m talking:

Perfect for tea, coffee, baby formula, or just being fancy with your hydration. I never realized how annoying it was to wait for a kettle until I stopped doing it.

And the touchscreen? Responsive, intuitive, and oddly satisfying. I find myself hovering over the temperature settings just because I can. It even lets you select volume dispensing, so if you want a preset 300ml cup every time, you can set it and forget it.

Dual Pitchers with UV Protection (Yes, Two!)

Here’s something clever: two removable Tritan BPA Free removable pitcher that are super durable and safe (baby bottles are generally made of this material). The water pitcher actually lives on the outside of the machine, which is a genius move for cleaning and refilling. The second pitcher? Perfect for stashing chilled pure water in the fridge. In addition, you can also carry the pitcher with clean water anywhere, for example, wash your face/teeth in the bathroom, or use it for mask-making. Plus, you can use it in the kitchen for cooking too (like pasta). Also, refill your coffee machine with this.

And with UV light behind the pitcher area, your water doesn’t turn into a science experiment while it waits for you.

Real-Time TDS Monitoring: Because I Need to Know

Call it overkill, but I appreciate the real-time TDS readout showing the before-and-after of your water. Watching the TDS drop from 280-ish to single digits is oddly addictive. It’s also a confidence booster knowing the filters are actually doing their job.

Easy Filter Changes (Like, Ridiculously Easy)

When it comes time to replace filters (which, by the way, last for thousands of liters), the whole process is just a twist and pop. No screwdrivers. No secret handshakes.

Also, the screen tells you exactly when to replace each one. I’ll never forget filter replacement again (not that I remembered before). Plus, let me emphasize on the fact that this entire process and system is environment friendly and that makes it such a great product to have in your everyday life to reduce your ecological footprint.

Child Lock and Night Light (For Bonus Points)

The child lock is clutch. I’m not a parent, but I have curious nieces and nephews who love pressing buttons. This keeps scalding water out of reach.

There’s also a water dispensing light for nighttime hydration missions. A small detail, but it makes a big difference.

Not Just for the Kitchen

Thanks to its slim size and portability, I’ve moved this thing around a lot: it’s been in my home office, the living room during a get-together (instant hot water for tea!), and even the gym room when I wanted chilled purified water post-workout. The 5L raw water tank means I’m not refilling it every few hours either. Once or twice a day, max.

The Verdict

The JIMMY R9 is basically the Tesla of water purifiers. It does everything: RO, UV, remineralization, instant heating, real-time monitoring, child safety, and more. All without requiring any plumbing or installation. And somehow, it still manages to look good on my countertop.

If you’re tired of mediocre water quality, iffy-tasting tea, or the countertop clutter of a kettle and a filter and a Brita pitcher and a water bottle, this is your all-in-one fix. The price might make you pause at first, but factor in the filter lifespan, UV protection, and hot water on demand, and it starts to look like a pretty solid investment.

Would I recommend it? Absolutely. Especially for renters, parents, remote workers, and tea/coffee snobs who want perfect water without the wait.

Now excuse me while I go pour myself some 165℉ water—because I can.

Madhurima Nag is the Head of Content at Gadget Flow. She side-hustles as a parenting and STEM influencer and loves to voice her opinion on product marketing, innovation and gadgets (of course!) in general.