Tailor meter (tape)
You can measure waist to hip ratio with tailor’s tape.

Smartphone apps
There are many useful health smartphone apps. Skin cancer detecting smartphone app may be one of them.

Heart rate monitor watch
Certain Polar hear rate monitor watches come with the Polar OwnIndex feature also known as the Polar Fitness Test. The Polar Fitness Test will make you aware of your current fitness level compared to others based on your age and gender.

References:
Wikipedia.org
voices.yahoo.com

You can start building your own home lab using many different devices to monitor your lifestyle.

Pedometer
A pedometer is a portable electronic device (can be a smartphone app) that counts each step a person takes by detecting the motion of the person's hips. A total of 10,000 steps per day, equivalent to 5 miles (8.0 km), is recommended by some to be the benchmark for an active lifestyle.

Blood pressure monitor
The American Heart Association recommends an automatic, cuff-style, bicep (upper-arm) monitor. Wrist and finger monitors are not recommended because they yield less reliable readings. Upper-arm blood pressure monitors usually give the most accurate and consistent results.

Cholesterol, glucose, triglycerides home meter
Do you know that you can check your cholesterol, glucose and triglycerides level at home? Home test kits are available to use between appointments with your health care provider.

Electronic BMI Scales
BMI (Body Mass Index) is the ratio of one's height and weight, and it is an excellent diagnostic tool many physicians use in determining whether an individual may be over or under weight. Most electronic BMI scales also have features for measuring body fat, water weight, and bone mass, so using an electronic BMI scale is the most convenient method for tracking changes in your body composition over time.