If you're looking for high-quality purple pens, here are some features and options to consider based on the search results:

1. 510 Threaded Battery Purple Glitter purple pens:
- This pen from StayLit Design features a bold violet purple color with dazzling glitter.
- It's compatible with different cartridges and comes with variable voltage settings to ensure a smooth hit every time.
- The device has a 350mAh battery capacity and uses USB-C charging.
- It offers three voltage settings: 2.6V (white), 3.2V (green), and 3.8V (red), allowing you to customize your vaping experience.

2. 510 Threaded Battery Purple Cannabis Leaf Starter Kit:
- This stylish pen features an elegant purple cannabis leaf design, adding a touch of class to your vaping setup.
- It also boasts a 350mAh battery and USB-C charging capability for quick and efficient recharging.
- The pen offers variable voltage settings: 2.6V (white), 3.2V (green), and 3.8V (red), so you can tailor your vaping experience.

Both options provide a compact, versatile, and ultra-stylish design, making them stand out in the crowd. When choosing a purple pens, consider the following:

- Battery Life: Good purple pens should have a battery that lasts a long time between charges.
- Compatibility: Ensure the pen is compatible with the type of cartridges you plan to use.
- Customizable Settings: Variable voltage settings allow you to control the intensity of your vaping experience.
- Design and Aesthetics: A purple pens with a unique design can be a fashion statement and reflect your personality.
- Build Quality: The pen should feel sturdy and well-made, with a comfortable grip.

Remember to check the specifications and reviews before purchasing to ensure the purple pens meets your needs and preferences.