Ultimate 2025 Guide: Top 5 Fertility Monitors in Canada — Clearblue, Mira, Kegg, Daysy, OvuSense

Clearblue stands out as the market leader for fertility monitors thanks to long-standing clinical validation, wide retail availability and an easy-to-understand digital interface that suits users seeking reliability without extensive tech setup. Compared with newer sensor- or app-driven devices on this list, Clearblue’s strength is its trusted hormone-test-based methodology and strong brand recognition, though it can be more consumable-costly over time than some single-purchase wearables. For people prioritizing proven accuracy and convenience in a mainstream fertility monitor, Clearblue remains the default, financially predictable option for many consumers.

Mira Fertility Plus is positioned as the high-precision, data-forward choice, offering quantitative hormone readings and integrations that appeal to users who want clinical-level tracking and long-term trend analysis. Technically it outperforms simple strip tests by measuring hormone concentrations, enabling more personalized cycle predictions, though its disposable test wands and higher upfront device cost can make it pricier per cycle than single-purchase sensors like Kegg or Daysy. Compared with Clearblue it sacrifices some plug-and-play simplicity for greater data granularity, making it a strong pick for those willing to invest in deeper hormone insight.

Kegg differentiates itself as a non-hormonal, reusable cervical fluid sensor that detects changes in mucus conductivity to identify fertile windows, offering a lower ongoing cost profile because it requires a single purchase rather than regular consumables. Technically it provides an attractive alternative for users who prefer mucus-based detection over hormone tests or basal-temperature devices, though it may be less direct for those who need precise hormone-level confirmation. Compared to Mira or Clearblue, Kegg’s financial advantage is the absence of recurring test-strip costs, while compared to Daysy it can identify fertile days using mucus signals rather than temperature shifts.

Daysy is a temperature-based fertility monitor known for its simplicity and low ongoing costs: once purchased, there are no consumables, and its algorithm delivers clear fertile/non-fertile indicators from daily basal body temperature readings. This makes Daysy financially attractive versus strip-based systems and suitable for users who prioritize a set-and-forget device, though it can be less immediately responsive than real-time hormone or mucus sensing when cycles are highly irregular. Versus the others on the list, Daysy’s technical trade-off is relying on post-ovulatory temperature changes rather than direct hormone or mucus measurements, favoring ease and economy over early prediction precision.