What Monitis EC2 Monitoring Provides and Amazon Cloud Watch Doesn’t?

Amazon Cloud Watch Monitis EC2 Monitoring
Monitor Amazon EC2 instances in real time yes yes
Dynamically add or remove Amazon EC2 instances yes planned soon
Pay as you go yes yes
APIs and Command Line Tools. yes yes
Amazon payments yes yes
US and EU region currently US only Both US and EU
CPU utilization and other server metrics yes yes
Atomically deploying external monitors yes
Process level monitoring yes
History of instances 2 weeks permanent
Monthly SLA reports yes
Real time graphical charts yes
Notification rules yes
Independent 3rd party SLA reporting yes
Email, SMS, IM notifications yes
Monthly price per instance $11 $5