You’re using Mira Max, or you’re choosing your next box of test wands. Ultra4 offers an extra hormone measurement, but Max already follows the three markers used for Mira’s ovulation tracking. So what would you actually gain by spending more? Mira lists LH, E3G and PdG for Max, with FSH added to Ultra4. [1]
Quick Verdict
Keep Max if its existing hormone trends answer your tracking questions. Consider Ultra4 when you have a specific reason to monitor FSH alongside them. Delay the upgrade if you’re expecting a home FSH result to diagnose a fertility condition or predict whether you’ll conceive. Clinical evaluation and home tracking serve different purposes. [5]
What Changes When You Move From Max to Ultra4?
Both wands measure LH, E3G and PdG. These readings support Mira’s fertile-window estimates and its interpretation of hormone patterns after an LH surge. Ultra4’s distinctive addition is FSH—not an entirely different ovulation-tracking system. The company also advertises faster processing and increased sensitivity compared with earlier wand generations. Neither claim, by itself, establishes better pregnancy outcomes or makes every Max user a candidate for upgrading. [1] [2]
Mira Max: LH + E3G + PdG; 20-wand refill listed at $89, or $4.45 per test. [3]
Mira Ultra4: LH + E3G + PdG + FSH; 20-wand refill listed at $99, or $4.95 per test. Mira advertises approximately 16-minute results. [4] [2]
Affiliate disclosure: HealthAffPro may earn a commission when you shop through the product links below.
20 Mira Fertility Max Wands
LH, E3G and PdG tracking for those who do not need an additional FSH measurement.
$89.00 per 20-wand pack · one-time US list price [3]
Availability note: the official product page currently shows Sold out. Check for restock.
20 Mira Ultra4 Wands
LH, E3G, PdG and FSH tracking in one wand, for buyers who specifically want FSH data.
$99.00 per 20-wand pack · one-time US list price [4]
Is FSH Worth Paying Extra to Track?
Mira positions Ultra4’s FSH measurement as added context for understanding cycle patterns. Someone intentionally following FSH may find having it alongside LH, E3G and PdG convenient. But the value depends on why the information is wanted and what can responsibly be concluded from it. [1]
What FSH cannot tell you
One urinary FSH reading cannot diagnose PCOS, determine egg quality or tell you your personal chance of pregnancy. The American Society for Reproductive Medicine cautions that clinical ovarian-reserve markers have limited predictive value for natural conception, and serum FSH measurements vary between cycles. Its guidance concerns clinical testing; it is not independent validation of Mira’s consumer FSH wand. [5]
Ask what an FSH trend would change: your tracking plan, a clinician conversation, or nothing? Without a concrete use, Max may be the more economical purchase. Persistent cycle or fertility concerns deserve clinical guidance rather than relying on another home measurement. If you’re still deciding whether to pay for PdG tracking, our Mira Plus vs Max buying guide compares the lower-cost two-hormone option with Max.
How Much More Will You Spend Over Several Cycles?
The recurring expense deserves more attention than the difference on a single package. Mira’s US listings show $89 for 20 Max wands and $99 for 20 Ultra4 wands when purchased once. Subscription listings show $80.10 and $89.10 respectively. The one-time difference is $10 per box, or 50 cents per test; prices and promotions can change. At the October 28 check, the Max listing also displayed a sold-out status. [3] [4]
For an illustrative 15 tests, the difference in consumed wand value is $7.50; for 20 tests, it is $10. These calculations are not checkout prices: you buy full packs, not individual test days. Mira estimates roughly 15–20 Max or Ultra4 wands per cycle, with Ultra4 use potentially reaching 25 or more during longer cycles. That makes pack size and your actual testing frequency more important than a simple monthly average. [6]
Why Might Your Hormone Readings Look Different After Switching?
Some existing users worry about what happens to their chart when they change wand types. Mira says Ultra4 has updated calibration for LH and FSH sensitivity and that normal differences can occur between strips, even using the same sample. A lower or higher number after switching does not automatically mean your hormone levels changed or that one wand is defective. [7] [8]
That concern is not hypothetical. In Reddit discussions, users have reported differing LH or PdG results after using Max and Ultra4, including unexpected low readings. These are personal reports, not controlled head-to-head accuracy studies. They show why buyers want an explanation; they do not establish which test is universally more accurate. [9] [10]
If your readings look unusual, review the manufacturer’s instructions and consider the pattern within a consistent testing method before interpreting isolated numbers. A surprising home result is not a diagnosis. If Mira detects an LH peak but does not confirm ovulation, our Mira ovulation confirmation troubleshooting guide explains the PdG and timing checks. For broader concerns involving faulty tests, refunds or support, our Mira Fertility complaints guide examines those separate issues.
Can You Switch From Max to Ultra4 in the Middle of a Cycle?
Mira recommends using one wand type throughout a cycle for consistent hormone tracking. A Reddit user who ran out of Max wands near the expected LH peak asked whether switching to Ultra4 would work. Other people’s experiences cannot override the manufacturer’s recommendation. If practical, plan the change for your next cycle rather than treating old and new readings as directly interchangeable. [8] [11]
You may not need to replace the analyzer. Mira says existing monitors can use Ultra4 after a software update; its product page specifies version 01.07.01.44 or later. Check your own device’s software before placing a refill order. [2] [4]
Which Wand Fits the Decision You’re Making?
If you’re satisfied with Max: Staying with a three-hormone routine is reasonable when LH, E3G and PdG already provide the cycle information you need. You are not giving up those three measurements by skipping the fourth.
If you specifically want FSH: Ultra4 lets you follow all four markers in a single test. Think of it as an additional tracking option, not a guarantee of better fertility outcomes or a substitute for a clinically ordered hormone test.
If your cycles are long or irregular: Your required test quantity may matter as much as the wand type. Mira notes that irregular or longer cycles can require more testing. Ultra4 is not automatically the better choice simply because the cycle is less predictable. [6]
If value is your concern: Consider both refill cost and whether FSH changes your decision. Reddit users discuss the upgrade, expenses and reading uncertainty; these are objections, not representative satisfaction data. [12] [13]
Final Verdict: Keep Max, Choose Ultra4, or Wait?
Keep Max if it meets your current needs. Choose Ultra4 when FSH is a measurement you intentionally want and the added cost fits your testing plan. Wait if your main reason for upgrading is medical reassurance that home hormone data cannot provide. This is a choice about relevant information, not a contest over the larger hormone count.
For the broader device decision, read our Mira Hormone Monitor review. Check current prices, stock and compatibility before ordering either refill.
Editorial disclosure: This article is based on published product information and user discussions, not personal product testing. Product-card images and Shop Product buttons contain affiliate links. HealthAffPro may earn a commission from qualifying purchases. Price and availability checks are dated October 28, 2026. This comparison is informational and not medical advice.
Sources & References
- Mira — Which Mira Wand Should I Choose? Hormones measured and manufacturer product positioning. View source
- Mira — How Is Ultra4 Different? Processing time, cost-comparison claim and monitor compatibility. View source
- Mira — Max Wands Product Page. Refill price, subscription and availability. View source
- Mira — Ultra4 Wands Product Page. Refill price, subscription and firmware requirement. View source
- American Society for Reproductive Medicine. Limits of ovarian-reserve testing for predicting fertility. View source
- Mira — How Many Wands Do I Need per Cycle? Typical test usage and longer-cycle considerations. View source
- Mira — Why Ultra4 Results May Differ. Updated calibration. View source
- Mira — Combining Ultra4 With Other Wands. One-wand-type recommendation and test variation. View source
- Reddit — Wand Sensitivity Discussion. Individual owner comparisons. View source
- Reddit — PdG Concerns With Ultra4. Individual user account. View source
- Reddit — Mixing Max and Ultra4 Mid-Cycle. Practical switching question. View source
- Reddit — Max or Ultra4 Wands? Direct upgrade question. View source
- Reddit — Do Any of Y’all Use Ultra4? Cost and buyer-value discussion. View source
✓
