Pentel EnerGel RTX Review: The Retractable Gel Pen That Actually Delivers
Pentel EnerGel RTX Retractable Liquid Gel Pens, (0.7mm), Assorted Colors, Ultimate Writing Pens, Best Writing Pens for Office, School and Journaling, Pack of 12
Pentel
- Office Supplies
- Sleek & stylish barrel design with metal accents for a Professional look
- High performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience
- Liquid gel ink dries so fast even left handed writers love it - no smears, no smudges, no globs
Quick Verdict
Pros
- Ink dries in seconds — even left-handed writers won't smudge the previous line
- Smooth, consistent ink flow from first word to last on the page
- Comfortable retractable design means no cap to lose mid-note
- 12 assorted colors provide good variety for journaling and color-coding
- Metal accent detailing gives a more premium feel than typical plastic pens
Cons
- 0.7mm tip is medium — not ideal if you prefer ultra-fine 0.3mm or 0.5mm precision
- At 12 pens per pack, you're locked into a single barrel style
- Ink can feel slightly thinner than a true gel, which some writers may notice
- Not pigment-based, so the colors are more functional than archival
Quick Verdict
The Pentel EnerGel RTX is a retractable liquid gel pen that genuinely solves the classic tradeoff between ink speed and smoothness. It doesn't bleed through cheap paper, dries fast enough for lefties, and the 12-pack gives you enough color variety for everything from a work inbox to a personal bullet journal. My score: 4.5 out of 5. Buy it if you want a no-fuss everyday pen that performs consistently. Skip it if you need archival-quality pigment ink or a ultra-fine tip.
What Is the Pentel EnerGel RTX?
I pulled the EnerGel RTX out of its packaging on a Tuesday morning, my desk still cluttered with Monday's meeting notes, and immediately scribbled a to-do list just to see what it felt like. The first thing you notice is the barrel — sleek, lighter than it looks, with a metal accent near the tip that gives it a slightly classier feel than the typical all-plastic pen. There's no cap to deal with, which sounds minor until you've spent ten minutes hunting for a pen cap you accidentally flicked across the desk. You click, you write.
The EnerGel formula is Pentel's answer to an old problem: liquid ink dries fast but can feel scratchy and skip; gel ink writes smoothly but stays wet long enough to smudge on your palm. By blending both, Pentel created something that lands closer to gel comfort while cutting dry time down to roughly one to two seconds on standard copy paper. That's not instant, but it's fast enough that I've stopped curling my hand around every line like I'm protecting fresh paint.
Key Features
- Retractable tip — no cap to lose, click mechanism works smoothly and feels precise
- Liquid gel hybrid ink — combines smooth gel flow with quick-drying liquid properties
- 0.7mm medium tip — balanced line width suitable for most handwriting styles
- Fast dry time — approximately 1-2 seconds on standard paper, left-hand friendly
- Metal barrel accents — subtle visual upgrade over standard plastic pens
- 12-pack assorted colors — mix of dark everyday tones and accent colors
- Comfortable grip section — rubberized grip zone reduces hand fatigue during extended writing sessions
Hands-On Review
Over two weeks I used the EnerGel RTX across three different notebooks, a legal pad, and a handful of sticky notes. By day three I had already picked a favorite color — the dark blue — and started mentally sorting the other eleven into "daily carry" and "special occasion" stacks. The dark blue writes with a rich, slightly saturated tone that's more interesting than a standard ballpoint without being as aggressive as a felt-tip marker.
What surprised me was the consistency. By the end of the second week, I was on my third pen from the pack, and each one felt identical to the first — same ink flow, same weight in the hand, same satisfying click. Some pen brands get noticeably inconsistent between pens in a multi-pack; the EnerGel RTX didn't. Even the retractable mechanism on each pen clicked with the same crispness, which sounds like a small thing until you've used a cheap multi-pack where half the pens feel like they're dying.
The orange and purple shades are where the formula shows its limits. They're perfectly usable for journaling or highlighting, but they're not opaque or saturated enough to stand in for a proper brush pen. If you're buying primarily for art journaling and want bold, punchy color, know that these are better suited to writing and light accent work than to filling large areas. I used the green for a weekly planning spread and it looked nice on the page — but it wasn't going to win any lettering awards.
One thing nobody mentions in the listings: these pens are quiet. I work in an open-plan office and the sound of someone clicking a pen repeatedly is a genuine pet peeve — so I appreciated that the EnerGel RTX's click is firm without being sharp or showy. The ink doesn't squeak or drag on smooth paper either, which is a pet peeve I have with some other gel pens that feel like they're scratching rather than gliding.
Who Should Buy It?
The Pentel EnerGel RTX is a strong match if you spend significant time handwriting and want something that just works — no cap to lose, no ink blobs, no skipping mid-sentence. It's particularly well-suited for:
- Office workers and students who need a reliable everyday pen that dries fast and feels comfortable over long note-taking sessions
- Left-handed writers who have historically struggled with smudging and need a pen that won't betray them on the page
- Bullet journal and planner enthusiasts who want a smooth-writing pen in multiple colors without switching pen types
- Anyone burned by cheap multi-pack pens that skip, blob, or run dry after a week — these are noticeably more consistent
Skip this if you need an ultra-fine tip (0.3mm or 0.5mm) for precision work like technical drawing or detailed illustration, or if you're specifically looking for archival, pigment-based ink for artwork that needs to last decades without fading. Also skip if you prefer a capped pen — the retractable design is convenient but non-negotiable here.
Alternatives Worth Considering
If the EnerGel RTX doesn't quite fit, here are two solid alternatives:
- Pentel EnerGel Clipert — A capped version of the same ink formula, often available in more tip sizes (0.3mm, 0.5mm, 0.7mm). Choose this if you prefer a cap and want finer line options.
- Sarasa Clip by Zebra — A push-button gel pen with a slightly different ink feel and a wider color range. The Sarasa is a popular competitor with a more pronounced click mechanism and equally fast dry time.
- Uni Jetstream — If you want something even faster drying and more smear-resistant on bad paper, Uni Jetstream uses a hybrid ink that's technically different (oil-based) but fills a similar everyday writing niche with excellent longevity.
FAQ
Yes — that's one of its strongest selling points. The liquid gel formula dries in roughly 1-2 seconds on most paper, which is fast enough to prevent smearing even as your hand moves across fresh ink.
Final Verdict
The Pentel EnerGel RTX earns its reputation as a dependable everyday pen. The liquid gel hybrid actually delivers on its promise — smooth enough for comfort, fast enough for lefties and fast writers. The retractable design is a practical win, and the 12-pack gives you enough color variety to stay organized without overcommitting. It's not a specialty art pen and the 0.7mm tip won't satisfy those who need ultra-fine precision, but for daily handwriting across office, school, and journaling, it does the job with no fuss. I'd buy it again.