# Siren vs Intro

**URL:** <https://forums.yoyoexpert.com/t/siren-vs-intro/318335>\
**Category:** Looking for Help/Recommendation\
**Created:** [April 15, 2020, 9:00pm UTC](https://forums.yoyoexpert.com/t/siren-vs-intro/318335 "2020-04-15T21:00:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![beezy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/beezy/32/161690_2.png) [@beezy](https://forums.yoyoexpert.com/u/beezy)\
**Post date:** [April 15, 2020, 9:00pm UTC](https://forums.yoyoexpert.com/t/siren-vs-intro/318335/1 "2020-04-15T21:00:04Z")

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Looking at both of these. Similar specs, with the Intro being a mm bigger, but how do they feel in play?

Anyone have both to compare?

Siren  
diameter: 53 mm  
width: 41 mm  
gap width: 4.5 mm  
weight: 65.2 g

Intro  
diameter: 54 mm  
width: 41.4 mm  
gap width: 4.7 mm  
weight: 66 g