Best Japanese Gel Pens -- Pilot G2, Uni Signo, Zebra Sarasa & More

Pilot Juice Up & Juice -- The Modern All-Rounder

Pilot Juice Up (often called the "Juice Up 04" or "Juice Up 05") is Pilot's premium gel pen line and one of the best all-rounders out there. The needle-point tip writes smoothly at almost any angle, and the ink dries quickly enough for left-handed writers. The Juice Up uses Pilot's proprietary gel ink, which is pigment-based and water-resistant. Perfect for journaling or using with watercolors and mildliners.

What sets the Juice Up apart is the tip design: a needle-point that extends into a metal cone, giving you a clear view of where the tip meets the paper. This makes it excellent for detailed writing and drawing. The barrel is comfortable and balanced, available in a wide range of colors from basic black to pastel lavender and neon orange.

The standard Pilot Juice is the more affordable sibling. It comes in 32 colors and uses the same great gel ink but with a traditional conical tip instead of the needle-point. The Juice is slightly bulkier but more comfortable for long writing sessions. Both pens accept the same refills, and both are widely available.

Tip sizes: 0.3 mm, 0.4 mm, 0.5 mm, 0.7 mm. Best for: everyday writing, journaling, planning, and note-taking.

Pilot G2 -- The Classic That Started It All

The Pilot G2 is arguably the most famous gel pen in the world. Launched in the late 1990s, it popularized the gel ink revolution and remains one of the best-selling pens globally. It is the pen you will find in office supply stores, college dorms, and professional settings everywhere.

The G2 uses a smooth, fast-drying gel ink that glides across most papers without skipping. The rubber grip is comfortable for extended writing. The click mechanism is satisfyingly solid. It comes in tip sizes from 0.38 mm to 1.0 mm, with the 0.5 mm and 0.7 mm being the most popular.

Is the G2 the best Japanese gel pen? Not for everyone. The ink is dye-based, not pigment-based, so it is not water-resistant. The G2 writes relatively wet, which means it can bleed through thin notebook paper. And the color range is limited to about 8 standard colors. But for pure writing comfort and reliability at a budget price, the G2 is hard to beat.

For a premium experience, try the Pilot G2 Limited. It is a metal-barreled version with a knurled grip that feels significantly more substantial in hand. It takes standard G2 refills and costs around $15-$20 versus $2-$3 for the plastic version.

Tip sizes: 0.38 mm, 0.5 mm, 0.7 mm, 1.0 mm. Best for: budget-friendly everyday writing, office use, students.

Uni-ball Signo -- Extreme Precision

The Uni-ball Signo line is all about precision. Uni (Mitsubishi Pencil Company) has been making writing instruments since 1887, and the Signo series represents their best gel ink technology. The ink is pigment-based, water-resistant, and fade-resistant. Signo archives will still be readable decades from now.

Signo DX (UM-151)

The "DX" stands for deluxe, and this is the Signo that enthusiasts rave about. The UM-151 uses a needle-point tip available in 0.28 mm, 0.38 mm, and 0.5 mm. The 0.28 mm tip writes an incredibly fine line, perfect for technical drawing, detailed planner work, and people with tiny handwriting. The ink is consistent and does not blob or skip. The barrel is slim and elegant, with a metal clip. Available in 20 colors.

Signo 151 (UM-151)

Essentially the same pen as the DX in slightly different packaging. The UM-151 is the pen's actual model number. If you see "Signo DX" and "Signo 151" both listed, they are the same pen with different labels in different markets.

Signo UM-153 -- The Broad Signo

The UM-153 is the bold, broad version of the Signo line. It uses a 1.0 mm tip that lays down a thick, juicy line. The ink is the same pigment-based Signo formula, so it is water-resistant and archival. The UM-153 is particularly popular for addressing envelopes, writing large-format text, and highlighting key points in dense documents. It is also a favorite for gel pen art because of the rich, opaque ink.

Tip sizes: 0.28 mm, 0.38 mm, 0.5 mm, 0.7 mm, 0.8 mm, 1.0 mm. Best for: precision writing, archival needs, fine details, envelope addressing.

Zebra Sarasa Clip -- The Color Enthusiast's Choice

The Zebra Sarasa Clip has become the go-to pen for color lovers. With over 40 colors in the standard line plus special editions, the Sarasa is to gel pens what Tombow Dual Brush is to brush pens: a collectible as much as a writing instrument.

The defining feature is the spring-loaded clip. Unlike ordinary clips, the Sarasa clip snaps back into place with satisfying tension and does not rattle. The pen body is simple but ergonomic, and the ink is pigment-based and water-resistant. The 0.5 mm and 0.7 mm tips are the most popular, but the Sarasa also comes in 0.3 mm, 0.4 mm, and 1.0 mm.

Sarasa Vintage Colors

The Vintage series is Sarasa's most famous line. These muted, retro-inspired colors (sepia black, Bordeaux purple, dark gray, antique pink) perfectly match the "aesthetic desk setup" trend. They are frequently out of stock because of their popularity. If you see a full set, grab it.

Sarasa Nano

The Nano is a newer addition that uses a 0.3 mm needle-point tip with nano-particle pigment ink. The ink contains pigment particles so fine that they can flow through a 0.3 mm tip without clogging. That is a genuine engineering achievement. The line is incredibly precise, and the ink dries instantly. Best for microscopic handwriting, technical drawing, and people who write in the margins.

Tip sizes: 0.3 mm, 0.4 mm, 0.5 mm, 0.7 mm, 1.0 mm. Best for: color variety, journaling, planner decoration, collections.

Pentel Energel -- The Speed Demon

The Pentel Energel holds a simple title: the fastest-drying gel ink in the world. In independent tests, Energel ink dries in under one second on most papers. Faster than Pilot Juice Up, faster than Sarasa, and significantly faster than the G2. For left-handed writers, this is life-changing.

The Energel ink is pigment-based and water-resistant. It flows smoothly with no skipping, and the pen comes in a huge range of barrel styles: from the basic $2 plastic BLN75 to the premium $20 Philography (twist-retract metal body), the $8 Libretto (wood grain barrel), and the $12 Energel Hex (hexagonal metal barrel). All use the same LR7 / LN7 refills, so you can switch barrels without changing the ink.

The standard BLN75 body is comfortable for long writing sessions, with a rubber grip and a low center of gravity. The Philography is the most popular premium option. It is slim, elegant, and looks like a high-end ballpoint but writes with Energel speed.

Tip sizes: 0.3 mm, 0.4 mm, 0.5 mm, 0.7 mm, 1.0 mm. Best for: left-handed writers, fast note-taking, professional settings.

Sakura Gelly Roll -- The Artist's Favorite

The Sakura Gelly Roll has been a staple of the art world since the 1980s. While other gel pens focus on everyday writing, the Gelly Roll is built for creation. The ink is opaque, blendable, and comes in finishes you won't find anywhere else: metallic gold and silver, neon, pastel, stardust (sparkle), white, and even glow-in-the-dark.

The Gelly Roll uses Sakura's proprietary pigment gel ink, which is archival, fade-resistant, and lightfast. The white Gelly Roll (size 08 or 10) is legendary in the art community. It is the go-to pen for adding highlights, stars, and details to watercolor paintings, illustrations, and card-making.

The classic models are the Gelly Roll Moonlight series (fluorescent colors that glow under blacklight), the Stardust series (sparkle with fine glitter), and the Metallic series (vibrant metallics). The standard Gelly Roll comes in 0.8 mm and 1.0 mm sizes, but there is also the Gelly Roll Classic (0.4 mm, 0.5 mm, 0.8 mm, 1.0 mm) for everyday colors.

Tip sizes: 0.4 mm, 0.5 mm, 0.8 mm, 1.0 mm. Best for: art, illustration, card-making, bullet journal headers, highlighting.

Quick Comparison

Best Pens for Different Uses

Journaling & Planning

For daily journaling and planner use, you want ink that dries reasonably fast, won't smudge under highlighter, and comes in colors you love. The Zebra Sarasa Clip (especially the Vintage Colors) and the Pilot Juice Up are the top picks here. The Sarasa gives you the widest color range for decorative planning, while the Juice Up's needle-point is perfect for small planner grids. Both are water-resistant, so your pages survive coffee spills.

Drawing & Illustration

Artists need opaque, blendable ink in interesting finishes. The Sakura Gelly Roll line is the clear winner for art. The white Gelly Roll is virtually essential for adding highlights to watercolor. The metallic and stardust series give you effects you cannot get from any other pen. For detailed line work, the Uni-ball Signo DX (0.28 mm) offers precision that is unmatched.

Note-Taking & Study

Speed matters most for note-taking. The Pentel Energel dries faster than any competitor. Indispensable if you take notes quickly or mix pens with highlighters. The Pilot G2 is the budget champion: cheap, comfortable, and available everywhere. For color-coded notes, the Zebra Sarasa Clip with 40+ colors lets you assign a color to each subject.

Top Japanese Gel Pen Picks