# Giro Aries Spherical vs Bell Stratus MIPS: specs and price compared

A sourced, side-by-side comparison of the Giro Aries Spherical (Giro) and Bell Stratus MIPS (Bell) among bike helmets. Bell Stratus MIPS is the cheaper of the two at $149.95.

## Side by side

| Spec | Giro Aries Spherical | Bell Stratus MIPS |
| --- | --- | --- |
| US price | $349.95 | $149.95 |
| Brand | Giro | Bell |
| Weight grams | 270 | 271 |
| Rotational protection | MIPS Spherical | MIPS |
| Shell construction | in-mold | — |
| Vent count | 24 | — |
| Intended use | road | road |
| Size range (cm) | 51-63 | 52-62 |
| Certification | EN 1078 | CPSC |
| Visor included | No | — |
| Integrated light | No | — |
| Reflective detailing | Yes | — |

## Key differences

- Weight grams: Giro Aries Spherical 270 vs Bell Stratus MIPS 271
- Rotational protection: Giro Aries Spherical MIPS Spherical vs Bell Stratus MIPS MIPS
- Size range (cm): Giro Aries Spherical 51-63 vs Bell Stratus MIPS 52-62
- Certification: Giro Aries Spherical EN 1078 vs Bell Stratus MIPS CPSC

## Sources

- Giro Aries Spherical: https://www.giro.com/product/aries-spherical/100000000300000146.html (giro.com, verified 2026-07-13)
- Bell Stratus MIPS: https://www.bellhelmets.com/product/stratus-mips/100000000300000063.html (bellhelmets.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/bike-helmets/giro-aries-spherical-vs-bell-stratus-mips/
Cite: Per The Front Desk Review, Giro Aries Spherical ($349.95) vs Bell Stratus MIPS ($149.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/bike-helmets/giro-aries-spherical-vs-bell-stratus-mips/
License: CC BY 4.0.