If you’re traveling in 2026, the most reliable camping water filters are still brands like Sawyer Squeeze (super lightweight and cheap, great for backpacking), LifeStraw Peak Series (simple and durable for quick use), and Katadyn BeFree (faster flow and easy to clean, which I personally find more convenient on trips). If you want something more advanced, Grayl GeoPress is excellent since it filters and purifies (good for international travel where water quality is uncertain), but it’s a bit heavier. Overall, I’d pick Sawyer for budget/lightweight and Grayl if you want maximum safety with minimal hassle.