Choosing the right VPN protocol affects your speed, security, and battery life. Here's an honest comparison of WireGuard® and OpenVPN, and why Aultra VPN uses WireGuard® for every connection.
Speed Comparison
WireGuard® - **Connection time:** Under 1 second - **Throughput:** Up to 30% faster than OpenVPN - **Latency:** Lower latency, better for gaming and video calls
OpenVPN - **Connection time:** 5-10 seconds - **Throughput:** Good, but slower than WireGuard - **Latency:** Higher overhead, slightly more lag
Winner: WireGuard® for raw speed and responsiveness.
Security Comparison
WireGuard® - Uses ChaCha20-Poly1305 encryption - ~4,000 lines of code (easier to audit) - Modern cryptographic primitives - No known vulnerabilities
OpenVPN - Uses AES-256-GCM encryption - ~100,000 lines of code - Decades of security audits - Industry standard for enterprises
Winner: Tie – both are highly secure. WireGuard is newer but thoroughly reviewed. OpenVPN has more years of real-world testing.
Battery Life
WireGuard® - Minimal CPU usage - Efficient handshake protocol - Stays connected with less power - Ideal for mobile devices
OpenVPN - Higher CPU requirements - More complex handshake - Can drain battery faster - Better suited for plugged-in devices
Winner: WireGuard® for mobile users who care about battery.
When to Use Each Protocol
Choose WireGuard® When: - You want the fastest connection - You're on a mobile device - Battery life matters - You need quick reconnects (switching networks)
Choose OpenVPN When: - You need to bypass strict firewalls - Your network blocks UDP traffic - You prefer the most battle-tested option - You need TCP mode for reliability
What Aultra VPN Uses
Aultra VPN runs every connection on WireGuard®. On a phone that moves between Wi‑Fi and mobile data all day, quick reconnects and low battery use matter most, so there's no protocol to pick or configure.
Our Recommendation
For most users, WireGuard® is the better choice. It's faster, uses less battery, and reconnects quickly when you switch networks.
