Z
LINEAR
linear medium-thocky Zeal PC

Zeal PC Pearlio

Hands-on with the Zeal PC Pearlio: a UHMWPE-stem linear on Gateron's CAP design, built for the smoothest possible travel and a deep, rounded sound.

4.5/5
4.5 4.5 · our rating
5.0/5
Smoothness
our feel rating
4.5/5
Wobble
lower is better
3/5
Noise level
medium-thocky

How it feels

Smoothness silky → scratchy 10.0
Wobble stability rock-solid → loose 1.0
Cleanness glass-smooth → scratchy 0.0

How it sounds

medium-thocky
Profile medium-thocky
Noise level 3/5
Spring ping None

Full review

Quick Summary

The Zeal PC Pearlio is a linear built around one goal: maximum smoothness. Its UHMWPE stem — one of the slipperiest materials in the hobby — runs polished rails against a polished nylon bottom housing for genuinely glassy travel. It bottoms out at a firm 60g and lands a deep, rounded medium-thocky sound. If you want one of the smoothest stock linears available, the Pearlio is a serious contender.

Specs and Feel

The headline is the material pairing: a UHMWPE stem and polished nylon bottom housing create exceptionally low friction, so there’s effectively no scratch anywhere in the stroke. A 60g bottom-out and gold-plated spring give it a firm, grounded feel that never goes pingy. The PC top over a nylon bottom rounds the sound into deep, medium-thocky territory rather than a bright clack. Crucially, the Pearlio uses Gateron’s CAP-series design, which braces the stem for reduced wobble and — more importantly — reworks the bottom pole so lube no longer pools where it can’t help. The result is a switch that’s both stable and exceptionally lube-friendly.

Tuning

It’s superb stock, so don’t feel obligated to open these up. That said, the CAP-series design makes the Pearlio one of the more rewarding switches to hand- lube: because the bottom pole no longer traps oil, a careful 205g0 application clings to the rails where it matters and pushes the smoothness from excellent to frictionless. Films are unnecessary given the stabilised stem. Leave the spring alone — the 60g weight is well matched to the deep sound.

Verdict

Buy the Pearlio if smoothness is your single highest priority and you want a firm, deep-sounding linear to back it up. It’s in the same conversation as Gateron’s Oil King — both are creamy, deep, and silky — but the UHMWPE stem gives the Pearlio an edge in raw glassiness, while the Oil King leans slightly warmer. For a flagship- feeling linear that’s still affordable per switch, it’s an easy recommendation.

Frequently asked

What makes the Pearlio so smooth?

The UHMWPE stem. It's one of the slickest stem materials available, with polished rails running against a polished nylon bottom housing, so the travel is about as glassy as a linear gets.

How heavy is it?

It bottoms out at 60g, putting it in firm-medium territory — substantial and grounded without being a heavyweight.

Does it tolerate lube well?

Yes. It uses Gateron's CAP-series design to stabilise the stem and improve lube retention, so oil no longer pools uselessly in the bottom pole. It's already excellent stock, though.

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