Pentel EnerGel Deluxe RTX Retractable Liquid Gel Pen

The Verdict

The Pen That Makes You Look Like You Have Your Life Together

You know that feeling when you pick up a cheap ballpoint at the bank and suddenly your handwriting looks like a doctor’s prescription? The Pentel EnerGel Deluxe RTX is the opposite of that. This is the pen that makes your shopping list look like a calligraphy project. With a 4.8-star average across 240 ratings, it’s clearly earning its reputation — but is it worth the premium over the standard EnerGel? Let’s break it down.

What’s in the Box

You get one pen. That’s it. No fancy packaging, no bonus refills, no leather case. The pen itself features a metal barrel (available in several metallic finishes like blue, silver, and rose gold), a rubberized grip section, and a retractable tip mechanism. It takes Pentel’s proprietary EnerGel refills (the standard LRN5 size), so you won’t be swapping in random Pilot or Uni refills.

The Writing Experience

The star here is the hybrid ink. Pentel calls it “liquid gel” — it sits somewhere between traditional gel ink and liquid rollerball ink. I’ve written pages of notes on cheap printer paper, glossy receipts, and even a napkin, and it never skipped once. The ink flows smoothly without the pooling you get from cheaper gels.

The 0.5mm tip delivers a crisp, precise line that’s ideal for small handwriting and detailed work. If you’re a heavy-handed writer, the metal barrel gives you enough heft to control the pen without needing to death-grip it. The rubberized grip is firm, not squishy — it won’t turn into a sticky mess after months of use like some softer grips do.

Drying time is surprisingly fast for a gel pen. Left-handed writers in the reviews consistently mention this as a major plus. One reviewer noted, “I’m a lefty and I don’t smear my notes anymore. This ink dries in seconds.” That’s a genuine selling point if you’ve ever finished a page of notes only to find it smeared across your palm.

What Buyers Keep Praising

The consistent themes across those 240 ratings are smoothness, ink quality, and the premium feel. Here’s what people actually say:

• “The ink is so smooth it’s almost like writing with liquid glass.”
• “I’ve bought dozens of these. They last for months with daily use and the refills are cheap.”
• “Finally a pen that looks professional in meetings but writes like a dream.”

The refill situation deserves a closer look. The LRN5 refills are around $10 for a 12-pack, which works out to less than a dollar per refill. That’s a solid value if you’re buying in bulk. Just know that you’ll likely need to order them online — most office supply stores carry the pens but not always the refills.

Where It Falls Short

Let’s be honest about the downsides.

The 0.5mm tip isn’t for everyone. If you prefer bold, heavy lines, this will feel too fine. The ink is smooth, but the fine point can feel scratchy on textured paper. If you’re a 1.0mm person, this isn’t your pen.

The metal barrel has a drawback. It’s heavier than the standard plastic EnerGel. For most people, that weight feels premium and helps with control. But if you’re writing for hours on end, some reviewers noted mild hand fatigue compared to ultra-light pens like the Pilot G2.

The clip is sturdy but tight. Getting it over a thick notebook cover or a shirt pocket takes some effort. It won’t fall off, but it’s not a one-handed operation.

Who Should Buy This

Buy it if:

• You’re left-handed and tired of smeared notes
• You want a pen that looks professional in client meetings
• You write daily and want something that feels substantial without being bulky
• You’re willing to buy refills online to save money long-term

Skip it if:

• You only write occasionally and don’t want to manage refills
• You prefer bold, heavy lines (stick with a 0.7mm or 1.0mm)
• You need the lightest possible pen for marathon writing sessions

FAQ

Q: Does this pen smudge? A: The ink dries faster than most gels — around 2-3 seconds on standard paper. Lefties report minimal smudging, which is rare for this category.

Q: Can I use Pilot or Uni refills in this pen? A: No. It takes Pentel’s proprietary LRN5 refills. They’re affordable and available on Amazon, but you can’t swap in other brands.

Q: Is this a good everyday carry pen? A: Yes, thanks to the retractable design and sturdy clip. It survives pocket carry well, though the metal barrel will develop some wear marks over time if you’re rough on it.

The Verdict

Rating: 4.6/5

The Pentel EnerGel Deluxe RTX earns its nearly perfect Amazon rating. It’s a legitimate upgrade over the standard EnerGel — the metal body, comfortable grip, and fast-drying ink justify the price difference. The 0.5mm tip limits its appeal for bold-line lovers, and the proprietary refill system is a minor inconvenience, but neither is a dealbreaker.

Buy it if you want a smooth-writing, professional-looking pen that won’t smear and will last for years with $10 refill packs. Skip it if you’re happy with cheaper plastic pens and don’t care how your handwriting looks on the page. For everyone else — this is the pen to keep on your desk and the one to lend when someone asks for “a pen that actually works.” Just don’t expect to get it back.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.