For hiking, the Casio Pro Trek PRG-270-1 is the lighter, thinner option and records trek data for as many as 14 treks. The G-Shock Rangeman GW-9400-1 is the tougher-spec choice, with listed shock resistance, 200-meter water resistance, radio-controlled timekeeping and buttons Casio says are designed for use with gloves. Both have Tough Solar power and an altimeter, barometer, compass and thermometer. Which watch suits your outdoor use depends mainly on whether you value a less bulky fit and trek logging or extra protection and timekeeping features.
This comparison uses Casio’s official specifications, not independent or hands-on testing. Casio PRG-270-1 specifications · Casio GW-9400-1 specifications.
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What are the main differences?
| Specification | Pro Trek PRG-270-1 | G-Shock Rangeman GW-9400-1 |
|---|---|---|
| Weight | 67 g | 93 g |
| Case dimensions (height × width × depth) | 54.6 × 52.4 × 15 mm | 55.2 × 53.5 × 18.2 mm |
| Water resistance | 100 m | 200 m |
| Shock resistance | Not listed on the cited product page | Listed |
| Power | Tough Solar | Tough Solar |
| Sensors | Altimeter, barometer, compass and thermometer | Altimeter, barometer, compass and thermometer |
| Altitude measurement range | −700 to 10,000 m | −700 to 10,000 m |
| Barometer display range | 260 to 1,100 hPa | 260 to 1,100 hPa |
| Logging | Trek log data for up to 14 treks; 30 manual altitude records | 40 manual records, each with date/time, direction angle, altitude, barometric pressure and temperature |
| Radio-controlled timekeeping | Not listed on the cited product page | Multi Band 6 |
Specifications are from Casio’s official PRG-270-1 page and GW-9400-1 page. A feature not listed on a cited page is not necessarily proof that no related function exists; it means the comparison cannot establish it from that listing.
Which watch is lighter and less bulky?
Choose the PRG-270-1 for lower listed weight
At 67 g, the Pro Trek is 26 g lighter than the 93 g Rangeman. Its listed case height is 15 mm, compared with 18.2 mm for the Rangeman, a difference of 3.2 mm. Those measurements make the PRG-270-1 the more appealing specification-based choice if you want less mass or height on your wrist. They do not establish comfort: wrist shape, strap fit and personal preference also matter, and the listed dimensions alone cannot predict how either watch will wear.
#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.
Which is better specified for rough conditions?
Rangeman: shock resistance and 200-meter water resistance
The GW-9400-1 lists shock resistance and 200-meter water resistance; the PRG-270-1 lists 100-meter water resistance. That gives the Rangeman the stronger protection specifications on paper for activities where knocks and water exposure are a priority. Water-resistance ratings are specifications, not a guarantee for every kind of use, and the difference does not amount to a complete real-world durability ranking.
Casio says the GW-9400-1 underwent a MIL-STD-810 test program involving conditions including blowing rain, immersion, salt fog, humidity and freeze/thaw simulations. This is Casio’s account of its testing, not a certification or independent proof that the watch is broadly superior. See Casio’s GW9400-1 testing page.
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.
Both share the core outdoor sensors
Each model includes an altimeter, barometer, compass and thermometer, with the same listed altitude measurement range of −700 to 10,000 m and barometer display range of 260 to 1,100 hPa. These are sensor functions, not a substitute for a map, a dedicated navigation device or an authoritative weather forecast. Casio’s specification ranges also do not establish comparative accuracy in field conditions.
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How do their logging features differ?
PRG-270-1: trek-oriented records
Casio lists trek log data for up to 14 treks, including high and low altitude and cumulative ascent and descent information. It also lists 30 manual altitude records. This setup is the more directly trek-focused option if you want stored elevation summaries for multiple outings.
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.
GW-9400-1: more sensor details per manual record
The Rangeman stores up to 40 manual records. Each includes date and time, direction angle, altitude, barometric pressure and temperature. Its higher record count is not directly comparable to the Pro Trek’s 14 trek logs: the models describe different kinds of stored information. Consider whether you want trek-level ascent and descent data or more individual multi-sensor snapshots.
Does the Rangeman’s radio timekeeping matter?
The GW-9400-1 has Multi Band 6 radio-controlled time adjustment; Casio’s cited PRG-270-1 page does not list that feature. Radio reception depends on location and conditions, so the Rangeman should not be assumed to synchronize everywhere. If you regularly travel or want automatic time adjustment where reception is available, it is a meaningful extra; if not, it may have little bearing on your choice.
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
Are the Rangeman buttons easier to use outdoors?
Casio’s international product description says its large stainless-steel buttons are knurled and designed for reliable operation while wearing gloves. The description also highlights guarded sensor controls and direct access. These are manufacturer design claims, not independent comparative usability results. If operating controls with gloves is important, the Rangeman’s stated design is relevant, but the available specifications do not prove that every user will find it easier to operate.
The Tool Desk
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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.
Which one should you choose?
Pick the Pro Trek PRG-270-1 if…
- You prioritize the lower listed weight and thinner case.
- You want trek logs with high/low altitude and cumulative ascent/descent information for up to 14 treks.
- Its 100-meter water-resistance listing fits your needs and the Rangeman’s additional protection specifications are not decisive.
Pick the G-Shock Rangeman GW-9400-1 if…
- You prioritize listed shock resistance and 200-meter water resistance.
- You want Multi Band 6 radio-controlled time adjustment, with the understanding that reception is location- and condition-dependent.
- You prefer its 40 multi-sensor manual records or value Casio’s glove-oriented button design.
There is no independent comparative field test here to establish which watch is more accurate, comfortable or usable in practice. The best fit follows from the specifications that matter most to your outdoor use.
Quick Recap
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