## Common ground
All options refer to protective glass designed for mobile phones or computers, typically used to shield screens from scratches and impacts.
## Options at a glance
**7007.19 – Tempered glass**
- **Defining trait:** Made through thermal tempering for enhanced strength and shatter resistance.
- **Typical examples:** iPhone screen protectors, Samsung Galaxy tempered films.
- **Best fit when:** The product is specifically heat-treated to resist cracking and breaking under pressure.
**7007.29 – Non-tempered glass**
- **Defining trait:** Not heat-treated; softer and more prone to breakage but often cheaper and easier to cut.
- **Typical examples:** Basic plastic-coated glass films, low-cost screen protectors.
- **Best fit when:** The product lacks thermal treatment and is intended for minimal protection at lower cost.
## Key differences
| Feature | 7007.19 (Tempered) | 7007.29 (Non-tempered) |
|---------------------|--------------------|------------------------|
| Heat treatment | Yes | No |
| Impact resistance | High | Low |
| Shatter pattern | Granular, safe | Sharp shards |
| Cost | Higher | Lower |
## How to choose
- Is the glass heat-treated for extra strength? → 7007.19
- Does it break easily under pressure or impact? → 7007.29
## Overlaps & pitfalls
Both types can be used on phones and computers, so function alone doesn’t distinguish them. The key difference is the manufacturing process (tempering). If unclear, prioritize based on performance: tempered glass is safer and more durable. Avoid assuming "glass" implies tempering—many basic protectors are not