evidence: This top-rated blood pressure monitor performs well and gives you the option of buying a larger cuff if you need one. Since the average cuff size only goes up to 17 inches, many people need and appreciate this option. Everything else about the monitor works quite well, and it features the most obvious blood pressure interpretation in the test, changing colors based on your hypertension score. [...] The iHealth Track Smart is one of the less expensive monitors in the test. It has respectable accuracy test results, an uncommon XL cuff size option, and average ease of use, making it a good buy if you need the larger cuff. If you don't, there are more accurate and easier-to-use options in this price range. We really appreciate that iHealth created a larger cuff option for their blood pressure monitor, making it an excellent option for anyone with larger arms. We do wish the user manual was easier to decipher, though. For those interested in checking their blood oxygen levels at home, we have also tested the best pulse oximeters.