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Lenovo 4X81D34328 Integrated Pen for 300e/500e Gen 3
Lenovo 4X81D34328 Integrated Pen for 300e/500e Gen 3
Lenovo 4X81D34328 Integrated Pen for 300e/500e Gen 3
Lenovo 4X81D34328 Integrated Pen for 300e/500e Gen 3
Lenovo

Lenovo 4X81D34328 Integrated Pen for 300e/500e Gen 3

★★★★★5.0 (1 reviews)

4096-level Wacom AES pressure sensitivity and a 15-second rapid charge make this integrated stylus the precision input tool Lenovo 300e/500e Gen 3 users actually want to use.

$50.40*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Lenovo 4X81D34328 is an active stylus built on the Wacom AES 1.0 electromagnetic resonance protocol, designed exclusively for the Lenovo 300e and 500e Gen 3 (Windows) convertible laptops. Its headline specification — 4096 levels of pressure sensitivity — puts it in the same tier as dedicated Wacom tablets, meaning the digitizer can distinguish very fine gradations of force across the full pressure range. The 5.3mm barrel diameter mirrors a standard pen, which reduces the learning curve for students and educators transitioning from handwritten workflows. The integrated charging garage is the defining convenience feature: docking the pen in the notebook's built-in slot initiates charging automatically, so there are no separate cables, charging docks, or AAAA batteries to manage.

This pen is purpose-built for the education market — the 300e and 500e are Lenovo's ruggedized, classroom-oriented Chromebook and Windows convertibles. It is the right tool for students annotating PDFs, teachers marking up presentations, and light sketching in apps like OneNote or Adobe Fresco. The rapid charge system (15 seconds to 85%) addresses the real-world scenario of a student pulling out a dead pen mid-lesson. What it is not built for is extended professional illustration: the 42-minute active use limit, lack of documented tilt sensitivity, and slim barrel will push serious digital artists toward a dedicated tablet setup. For its intended use case — integrated, always-ready stylus input on a rugged education convertible — it executes precisely.

Key Features

Diameter: 5.3mm

Wacom AES 1.0

Up to 4096 levels of pressure sensitivity

Rapid charge 15s for 85% and 5 minutes for 100% charge

Up to 42 minutes active use for one single fully charge

Integrated storage and charging in notebook

Specifications

Model
4X81D34328
Stylus Protocol
Wacom AES 1.0
Pressure Sensitivity
4096 levels
Barrel Diameter
5.3mm (0.2")
Weight
0.13 oz
Buttons
2 customizable
Rapid Charge (85%)
15 seconds
Full Charge Time
5 minutes
Active Use per Charge
Up to 42 minutes
Charging Method
Integrated notebook garage
Color
Black
Compatibility
Lenovo 300e Gen 3 (Windows), Lenovo 500e Gen 3 (Windows)

Pros & Cons

👍 Pros

  • 4096 levels of Wacom AES 1.0 pressure sensitivity matches professional stylus standards in a device-integrated form factor.
  • 15-second rapid charge to 85% means the pen is usable almost instantly after being stored.
  • Integrated garage charges and stores the pen inside the notebook, eliminating the risk of loss and keeping the kit self-contained.
  • 5.3mm barrel diameter produces a slim, pen-like feel that reduces the transition effort for users moving from paper.
  • No Bluetooth or battery management required from the user — power and pairing are handled by the integrated charging system.

👎 Cons

  • 42 minutes of active use per full charge is a hard ceiling — extended drawing or annotation sessions will require interruptions to recharge.
  • Compatibility is locked to the Lenovo 300e/500e Gen 3 (Windows); it will not function as a replacement or upgrade pen for any other device.
  • The 0.13 oz weight and 5.3mm diameter, while natural for writing, offer less grip mass than larger aftermarket styluses preferred by artists doing sustained illustration work.
  • No tilt sensitivity is listed, which limits the ability to simulate natural pencil-shading techniques that tilt-aware digitizers support.

Frequently Asked Questions

It uses Wacom AES 1.0 — an active electromagnetic resonance protocol that communicates directly with the digitizer in the 300e/500e Gen 3 display. No Bluetooth pairing is required; the pen is recognized automatically when brought near the screen.
A full charge delivers up to 42 minutes of active use. The rapid charge system hits 85% capacity in just 15 seconds, which is enough for a short note-taking session. Full charge takes 5 minutes via the integrated garage in the notebook.
No. The 4X81D34328 is designed specifically for the Lenovo 300e and 500e Gen 3 (Windows) and fits the integrated storage slot in those models. It will not charge or store in other Lenovo chassis, even those with Wacom AES support.
Out of the box, the buttons are mapped to common functions like eraser and right-click. They can be remapped through Lenovo's device settings or Windows Pen & Touch settings, giving users control over shortcuts relevant to their workflow.
4096 levels is the same pressure resolution found in professional Wacom hardware, so it is capable of nuanced brush strokes and shading — not just handwriting. The 5.3mm barrel diameter is slim, however, which some illustrators find fatiguing over long sessions compared to a full-sized stylus.

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