1. 1. Scalability and Data Retention: While both Amazon CloudWatch and Sumo Logic offer scalability and data retention options, there is a key difference in how it is achieved. Amazon CloudWatch offers automatic scaling based on the demand and allows you to retain your data for an extended period with its long-term storage feature. On the other hand, Sumo Logic provides a highly scalable and distributed architecture that allows you to collect and store vast amounts of log data for real-time analysis and compliance purposes.

2. 2. Log Data Processing: Amazon CloudWatch primarily focuses on collecting, analyzing, and visualizing metrics and log data from AWS resources, including services such as Amazon EC2, Amazon RDS, and others. It provides insights into the performance and health of your AWS infrastructure. In contrast, Sumo Logic specializes in log data processing and analysis, regardless of the source or infrastructure. It supports multi-cloud and hybrid environments, making it suitable for organizations with diverse infrastructures.

3. 3. Real-time Monitoring and Alerting: Amazon CloudWatch offers real-time monitoring capabilities, allowing you to monitor your AWS resources in real-time and set up alarms based on predefined thresholds. It provides timely notifications to help you identify issues and take proactive actions. Sumo Logic also offers real-time monitoring and alerting but goes beyond AWS resources. It enables you to receive alerts and notifications from various sources, including applications, servers, and other systems, providing a holistic view of your entire environment.

4. 4. Log Aggregation and Analytics: Sumo Logic specializes in log aggregation and advanced analytics to derive valuable insights from large amounts of log data. It provides interactive dashboards, search capabilities, and machine learning-powered analytics to help identify patterns, anomalies, and trends in log data. While Amazon CloudWatch offers some log aggregation and analytics features, it is more focused on monitoring and management of AWS resources rather than detailed log analysis.

5. 5. Security and Compliance: Both Amazon CloudWatch and Sumo Logic prioritize security and compliance. Amazon CloudWatch adheres to various security best practices and provides integrations with AWS Identity and Access Management (IAM) for access control. It also supports compliance requirements such as HIPAA, GDPR, and ISO 27001. Sumo Logic also offers advanced security features like encryption, role-based access control, and supports compliance with industry standards. It is worth noting that compliance requirements may vary, so it's important to understand which specific regulations apply to your organization.

6. 6. Integration and Extensibility: Amazon CloudWatch provides seamless integration with other AWS services, allowing you to collect and monitor data from a wide range of resources within your AWS environment. It offers APIs and SDKs to extend its functionality and integrate with third-party tools. Sumo Logic also supports integration with various cloud platforms, on-premises systems, and offers APIs and SDKs for extensibility. Its extensibility also enables integration with various DevOps and security tools for a comprehensive monitoring and analytics solution.

In summary, while both Amazon CloudWatch and Sumo Logic offer monitoring and analytics capabilities, the key differences lie in their focus, scalability options, data processing capabilities, and integrations. Amazon CloudWatch specializes in monitoring AWS resources, providing real-time insights, and is tightly integrated within the AWS ecosystem. Sumo Logic, on the other hand, excels in log data processing and analysis, offering scalability, real-time monitoring, and analytics across diverse infrastructures.