Scanner — Compatible Accessories Guide

Recommended MVP Bundle

Maximum marker improvement for minimum cost. These three devices upgrade ~25 markers from estimates to validated readings.

⚖

Smart Scale (BIA)

~$30

💓

Pulse Oximeter

~$30

🩹

BP Monitor

~$80

Total Bundle Cost

3 devices, ~25 markers upgraded

~$140

Device Impact Ranking

All 11 accessories ranked by total markers affected (improved + new). Highest impact first.

Improved (estimate → clinical) New (scanner can't do without device)

At-Home Blood Test Kit

Fills amino acid, coenzyme, immune, fatty acid, endocrine gaps

+40 new

Smart Ring

Upgrades snapshot readings to 24/7 continuous data

30 improved

At-Home Hormone Panel

Fills reproductive, endocrine, and gland secretion gaps

+16 new

EEG Headband

Replaces bone conduction proxy with real neural signals

11 improved

Smart Scale (BIA)

Body composition estimates to clinical-grade BIA readings

10 improved

Portable ECG Monitor

Camera-based HR/HRV to medical ECG trace

8 improved

Bluetooth Spirometer

Frequency estimates to spirometry-grade lung function

7 improved

Bluetooth Pulse Oximeter

Camera SpO2 to FDA-cleared fingertip readings

6 improved

Bluetooth BP Monitor

Camera-based BP to FDA-cleared oscillometric cuff

6 improved

CGM (Continuous Glucose)

Single glucose estimate to continuous 24/7 monitoring

3 improved

Bluetooth Thermometer

Adds body temperature + improves thermal stress

1 improved • +1 new

⭐

Tier 1 — High Impact, Low Cost

Standard Bluetooth health devices. Biggest accuracy boost for the dollar.

$25 - $150

Body Composition

Bluetooth Smart Scale (BIA)

$25 - $100

Uses bioelectrical impedance analysis to measure body fat, muscle mass, water percentage, bone mass, and BMR. Syncs over Bluetooth. The single best accessory for body metrics accuracy.

MeasuresBody fat %, muscle mass, water %, bone mass, BMR, visceral fat
ConnectionBluetooth 4.0+ / WiFi
AccuracyBody fat within 3-5% of DEXA scan

Markers Upgraded

10 improved0 new

#327 Body Mass Index #328 Body Fat Percentage #329 Lean Body Mass #330 Muscle Mass Estimate #331 Basal Metabolic Rate #332 Waist-Hip Ratio #333 Body Water Estimate #334 Visceral Fat Index #335 Body Form Score #336 Obesity Degree Index

Estimate → 90%+ accuracy (BIA clinical)

Best Value Renpho Smart Scale ~$30 Mid-Range eufy Smart Scale P2 Pro ~$50 Premium Withings Body+ ~$100

Blood Oxygen & Heart Rate

Bluetooth Pulse Oximeter

$30 - $100

Medical-grade SpO2 and heart rate from fingertip. Validates the camera-based rPPG estimates with clinical accuracy. Some models track continuously overnight.

MeasuresSpO2, heart rate, perfusion index, pulse waveform
ConnectionBluetooth 4.0+
AccuracySpO2 ±2%, HR ±2 bpm (FDA cleared)

Markers Upgraded

6 improved0 new

#1 Heart Rate #5 SpO2 Estimate #9 Perfusion Index #10 Pulse Transit Time #129 SpO2 (fingertip) #130 Perfusion Index (fingertip)

Estimate → 98%+ accuracy (FDA-grade)

Best Value Wellue Fingertip Pulse Oximeter ~$30 Continuous Wellue O2Ring (overnight) ~$80 Medical Masimo MightySat ~$300

Blood Pressure

Bluetooth BP Monitor

$50 - $130

Clinical-grade blood pressure readings via arm cuff with Bluetooth sync. Replaces camera-based BP estimates with validated oscillometric measurement.

MeasuresSystolic, diastolic, pulse rate, irregular heartbeat detection
ConnectionBluetooth 4.0+ / WiFi
Accuracy±3 mmHg (FDA cleared, clinically validated)

Markers Upgraded

6 improved0 new

#3 Blood Pressure Systolic #4 Blood Pressure Diastolic #7 Mean Arterial Pressure #33 Peripheral Vascular Resistance #41 Hemodynamic Stability #44 Blood Volume Estimate

Estimate → 97%+ accuracy (FDA clinical)

Best Value OMRON Silver Bluetooth ~$50 Compact Withings BPM Connect ~$100 Cuffless OMRON Evolv ~$80

Body Temperature

Bluetooth Thermometer

$25 - $100

Contactless or temporal artery temperature with Bluetooth sync. Adds a vital sign the camera currently can't measure. Useful for fever detection and basal body temperature tracking.

MeasuresBody temperature (±0.2°F), trend tracking
ConnectionBluetooth 4.0+ / WiFi
Accuracy±0.2°F / 0.1°C (medical grade)

Markers Upgraded

1 improved1 new

#54 Thermal Stress Response NEW: Body Temperature

Adds new marker + improves thermal stress

Best Value iHealth No-Touch Thermometer ~$25 Premium Withings Thermo (temporal) ~$100

💫

Tier 2 — Advanced Monitoring

Specialized devices for continuous tracking and deeper health insights.

$100 - $400

Brain Wave Monitoring

EEG Headband

$200 - $400

Real EEG electrodes measure delta, theta, alpha, beta, and gamma brain waves. Replaces the bone conduction proxy with actual neural signal measurement. Game-changer for brain entrainment markers.

Measures5 brainwave bands (delta through gamma), meditation quality, focus
ConnectionBluetooth 5.0
AccuracyResearch-grade EEG (4-7 channels, µV resolution)

Markers Upgraded

11 improved0 new

#222 Delta Wave Readiness #223 Theta Wave Readiness #224 Alpha Wave Readiness #225 Beta Wave Readiness #226 Gamma Wave Readiness #85 Focus Level #86 Meditation Depth #87 Cognitive Load Proxy #84 Cognitive Load #88 Mood Stability #89 Burnout Risk

Emerging proxy → Real EEG neural signals

Best Overall Muse 2 Headband ~$250 Sleep + EEG Muse S (Gen 2) ~$400

24/7 Passive Monitoring

Smart Ring

$200 - $400

Worn continuously for 24/7 tracking of HRV, SpO2, skin temperature, sleep stages, and activity. Gives longitudinal data instead of one-time snapshots. Transforms stress and recovery markers.

MeasuresHRV, SpO2, temperature, sleep stages, steps, readiness score
ConnectionBluetooth 5.0
Battery4-7 days

Markers Upgraded

30 improved0 new

#1 Heart Rate (continuous) #2 Respiratory Rate #5 SpO2 (continuous overnight) #6 Pulse Rate Variability #11 SDNN #12 RMSSD #13 pNN50 #14 LF Power #15 HF Power #16 LF/HF Ratio #17 Total Power #18 VLF Power #19 Triangular Index #20 SD1 #21 SD2 #22 SD1/SD2 Ratio #23 ApEn #24 SampEn #25 DFA Alpha 1 #26 DFA Alpha 2 #45 Stress Index #46 Sympathetic Activity #47 Parasympathetic Activity #48 ANS Balance #51 Vagal Tone #52 Recovery Capacity #54 Thermal Stress Response #65 VO2 Max Estimate #68 Training Readiness #343 Sleep Quality Proxy

Snapshot → 24/7 continuous data

Market Leader Oura Ring Gen 3 ~$300 No Subscription RingConn Gen 2 ~$200 Samsung Galaxy Ring ~$400

Heart Rhythm & ECG

Portable ECG Monitor

$80 - $200

Records a medical-grade ECG trace from your fingers. Detects atrial fibrillation, bradycardia, tachycardia. FDA-cleared for cardiac screening.

MeasuresSingle-lead ECG, AFib detection, heart rhythm analysis
ConnectionBluetooth 4.0+
AccuracyFDA-cleared, 97% AFib sensitivity

Markers Upgraded

8 improved0 new

#1 Heart Rate #11 SDNN #12 RMSSD #13 pNN50 #14 LF Power #15 HF Power #16 LF/HF Ratio #37 Atrial Fibrillation Risk #38 QT Interval Proxy

Estimate → Medical ECG trace (FDA-cleared)

Lung Function

Bluetooth Spirometer

$50 - $300

Measures lung capacity, airflow rates, and breathing patterns with medical precision. Essential for validating frequency-based pulmonary estimates.

MeasuresFEV1, FVC, PEF, tidal volume, inspiratory capacity
ConnectionBluetooth 4.0+
AccuracyATS/ERS compliant (±3% or ±50ml)

Markers Upgraded

7 improved0 new

#250 Vital Capacity Frequency #251 Total Lung Capacity Frequency #252 Airway Resistance Frequency #323 Breathing Rate Variability #324 Tidal Volume Estimate #325 Inspiratory Capacity Estimate #326 Breath Pattern Regularity

Frequency estimate → Spirometry-grade

Best Value Chduino Spirometer ~$50 Medical MIR Spirobank Smart ~$300

🔬

Tier 3 — Closes the "Impossible" Gaps

At-home lab tests and continuous monitors for markers that need blood/fluid analysis.

$50 - $200 / test

Continuous Glucose

CGM (Continuous Glucose Monitor)

$90 - $200 / month

Tiny sensor under the skin streams real-time blood glucose every 1-5 minutes for 14 days. No more single-point estimates — see the full picture including spikes, crashes, and A1C trends. Now available OTC without prescription (Dexcom Stelo).

MeasuresReal-time glucose (mg/dL), trends, time-in-range, estimated A1C
ConnectionBluetooth 5.0 to phone app
AccuracyMARD 8-9% (clinical standard)
Duration10-14 days per sensor

Markers Upgraded

3 improved0 new

#56 Blood Glucose Level #57 Blood Glucose Estimate #64 HbA1c Estimate

Single reading → 24/7 continuous glucose

No Rx Needed Dexcom Stelo (OTC) ~$99/mo Most Popular Abbott Libre 3 ~$75/sensor

At-Home Blood Testing

Finger-Prick Lab Test Kits

$50 - $200 / kit

Prick your finger at home, mail the sample to a CLIA-certified lab, get results in 2-5 days. Covers vitamins, minerals, hormones, thyroid, cholesterol, and more. The only way to close many of the 78 "none" markers from the QRMA comparison.

MeasuresVaries by kit — vitamins, hormones, lipids, thyroid, immune markers
AccuracyCLIA-certified lab analysis (same as doctor's blood work)
Turnaround2-5 business days

Adds New Markers (scanner can't measure these)

0 improvedup to 40 new

Amino Acids (11)

Lysine Tryptophan Phenylalanine Methionine Threonine Isoleucine Leucine Valine Histidine Arginine Homocysteine

Coenzymes (3)

Biotin Pantothenic Acid Folic Acid

Immune (6)

Immunoglobulin Tonsil Bone Marrow Respiratory Immune GI Immune Mucosa Immune

Essential Fatty Acids (4)

Linoleic Acid γ-Linolenic Acid α-Linolenic Acid Arachidonic Acid

Endocrine (4)

Parathyroid Pituitary Pineal Gland Secretion

Trace Elements (6)

Nickel Vanadium Tin Silicon Strontium Boron

Vitamins verified via blood (6)

Vitamin blood levels (6 verified)

Scanner can't measure → Lab-grade blood work

Comprehensive Everlywell Vitamin D + Inflammation ~$50 Men's Health Everlywell Testosterone Test ~$50 Thyroid Everlywell Thyroid Test ~$60 Full Panel LetsGetChecked Comprehensive ~$180

Hormone Testing

At-Home Hormone Panel

$50 - $150 / kit

Saliva or finger-prick tests for testosterone, estrogen, cortisol, DHEA, and thyroid hormones. Covers the male reproductive markers that no scanner can measure from the outside.

MeasuresTestosterone, estrogen, cortisol, DHEA, TSH, T3, T4
AccuracyCLIA-certified lab / LC-MS/MS for hormones
Turnaround2-5 business days

Adds New Markers (closes "none" gaps)

0 improvedup to 16 new

Reproductive Hormones (6)

Testosterone Estrogen Progesterone LH (Luteinizing Hormone) Prolactin FSH (Follicle-Stimulating)

Male Sexual Function (2)

Testosterone (Male Sexual) Gonadotropin

Endocrine Glands (3 partial → full)

Thyroid Secretion Adrenal Gland Thymus Gland

Closes ~16 "impossible" markers via lab testing

Men's Everlywell Men's Health Test ~$50 Women's Everlywell Women's Health ~$50 Full Hormone LetsGetChecked Hormone Panel ~$130

Premium Bundle — Maximum Coverage

For users who want the most complete health picture possible. Covers ~80% of all 346 markers with clinical or near-clinical accuracy.

⚖

Smart Scale

~$30

💓

Pulse Oximeter

~$30

🩹

BP Monitor

~$80

💡

EEG Headband

~$250

💍

Smart Ring

~$200

💓

ECG Monitor

~$80

🏭

Blood Test Kit

~$180

Total Premium Bundle

7 accessories, ~100+ markers upgraded to clinical-grade

~$850