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Neither scale is established as more accurate. The available evidence includes no controlled head-to-head test, and both devices use bioelectrical impedance analysis (BIA), which produces body-composition estimates rather than clinical measurements. The Herz P1’s published feature list is broader; the Oxiline MD Pro highlights rechargeable power, a handle-mounted display, and data export. Which fits better depends on the features and evidence you value.
What the comparison can—and cannot—tell you
Both manufacturers describe their scales as using BIA, a method that estimates body composition from electrical measurements. Those estimates are not diagnoses, and the available material does not validate either model as a clinical measurement device. There is no independent, controlled test directly comparing the Herz P1 with the Oxiline Scale MD Pro.
Herz says the P1 uses eight electrodes and dual-frequency BIA, and advertises “up to 97% accuracy.” That figure is a manufacturer claim: the product page does not provide a supporting validation protocol or study. Oxiline describes sensors in both the scale base and handle, but that design description does not establish comparative accuracy.
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| Feature | Herz P1 | Oxiline Scale MD Pro |
|---|---|---|
| Measurement design | Manufacturer lists eight electrodes and dual-frequency BIA. Herz product page | Manufacturer describes BIA sensors on the base and handle. Oxiline specifications |
| Published metric count | 56 metrics, according to Herz. The page reviewed does not provide a metric-by-metric validation study. Herz product page | 16 readings, according to Oxiline’s specifications. Oxiline specifications |
| Power | Four AAA batteries. Herz setup guide | Rechargeable 500 mAh battery with USB-C charging. Oxiline specifications |
| Display | Large embedded LED display, as described by Herz. Herz product page | 3-inch OLED display on the handle. Oxiline specifications |
| App and data | Herz’s guide says measurements sync after connection with the Unique Health app. Herz setup guide | Oxiline says its app stores measurements, supports PDF and CSV export, and syncs with Apple Health and Android Health Connect. Oxiline product page |
| Published maximum capacity | 400 lb / 180 kg; 0.1 lb increments, according to Herz. Herz product page | 396 lb / 180 kg, according to Oxiline. Oxiline specifications |
| Independent evidence identified | No independent accuracy validation was identified in the sources reviewed. | A Tom’s Guide hands-on review reported inconsistent readings and questioned some app interpretations; it was not a comparison with Herz. Tom’s Guide review, April 13, 2026 |
The metric totals may use different definitions, so a larger count does not by itself show that a scale is more useful or accurate. There was no direct side-by-side usability test establishing which display or app is easier to use. Check that the app currently supports your phone and the health platform you use.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
What the accuracy evidence says
Herz’s stated “up to 97% accuracy” lacks a disclosed comparison method or validation data on the product page reviewed. Treat it as a vendor claim, not a result independently confirmed for your body or a guarantee that each metric is correct.
In her April 13, 2026 review, Tom’s Guide’s Erin Bashford described a 2.9 percentage-point overnight change in the Oxiline’s body-fat reading during her testing and questioned some in-app interpretations. That is one reviewer’s observation, not a population statistic or a controlled comparison with the Herz P1. It gives readers a reason to be cautious about interpreting individual readings, but it does not establish how the two scales compare in accuracy.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Which one fits your priorities?
Consider the Herz P1 if
- You prefer the manufacturer’s stated eight-electrode, dual-frequency design.
- You want its stated 56-metric feature set, while recognizing that count is not proof of accuracy or practical value.
- You are comfortable using replaceable AAA batteries and its embedded display.
Consider the Oxiline MD Pro if
- You prefer a rechargeable scale with USB-C charging.
- You want a display mounted on the handle.
- PDF or CSV export and the stated Apple Health or Android Health Connect syncing matter to your tracking workflow.
- You are willing to weigh the independent reviewer’s reported inconsistencies when deciding whether to rely on its estimates.
For either device, compare the current price, return policy, and warranty before buying; those purchase terms are not established here. No evidence in this comparison supports treating either scale’s body-fat or other BIA outputs as a diagnosis.
Recommended Free Tools
Herz P1 setup and safety
Herz’s guide recommends placing the P1 on a hard, flat surface, waiting for the display to show 0.0, and stepping on barefoot with clean, dry feet. It advises against measuring immediately after exercise, bathing or sauna, eating or drinking, or when sick or dehydrated. The same guide says not to use the scale with a pacemaker or similar medical implant and says use is not recommended during pregnancy. Follow the manufacturer’s guidance and seek medical advice for personal safety questions. Herz P1 setup and safety guide, updated March 29, 2026.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
