What metrics do you focus on post-launch to evaluate hardware performance in the market?

Before jumping to any traditional metrics, be sure that you understand the Business Objective. For example, your organization may use the hardware to create interest, generate consumer loyalty and may be a loss-leader. And in other cases, hardware product may be your whole business and you want to protect your margins. So the first goal is to make sure that your post-launch metrics are in-line with the company goals.

Few traditional metrics -

Sales, number of units sold, increase or decrease in the rate of sales, profitability can be some standard metrics. RMAs (rate of return), customer complaints, on time delivery can also be important metrics especially in the early days of launch.

Engagement Metrics

However, make sure that you have engagement metrics to understand how well users are connecting with the hardware. Metrics such as First Radio On (FRO), customer satisfaction ratings (send a survey if need be), Amazon ratings (for consumer products) will be important to track over time..