Strengths
- Tracks estrogen AND LH — more reliable in PCOS
- Digital display — no line interpretation ambiguity
- High and Peak fertility distinction
- Up to 7-day fertile window
- Most PCOS-suitable OTC test
- Widely available
- Higher cost per cycle (~$3–4/test)
- Does not show actual hormone concentrations
- Estrogen still affected by PCOS in some patients