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Emprum UltiMate GPS Receiver for iPod touch, iPhone, iPad and desktop/laptop computers

3.0 out of 5 stars 70 customer reviews
| 19 answered questions

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  • Use it in your car, on your bike, on your boat or in a plane. Use it for geocaching, hiking, golfing, cycling, running, or any other outdoor activity you can think of. Works great with apps like Navigon, TomTom, RunKeeper, Geocaching, Fore Flight, ESRI ArcPad, and many, many more.
  • Turns any iPod touch, iPhone, iPad or PC (Mac/Windows/Linux) into a state-of-the-art GPS receiver. High quality product, designed and assembled in the USA!
  • "Made for iPod" certified by Apple. No need to "jailbreak" your iOS device. Comes with the free UltiMate GPS App, available on the App Store (requires iOS 3.0 or higher), giving you full control of your receiver. Works with most, if not all, location-based iOS apps available on the App Store. Also works with your PC (Mac/Windows/Linux), delivering standard GPS NMEA sentences over USB to your PC for use in navigation or location-based PC software (not included).
  • Powered directly from iPod touch, iPhone or iPad, or via USB cable from PC or wall/car charger. Includes 1.2m (4ft) USB cable with quick-release button and 2.1A charging capability. USB cable allows for on-the-go charging and syncing of iPod touch, iPhone and iPad. WHEN USB CABLE IS PLUGGED IN, GPS ENGINE WILL KEEP A SATELLITE LOCK, EVEN WHEN SWITCHING APPS!
  • Small and portable with a high-quality glossy black finish. Works with most protective cases, vehicle mounts and other fixtures. Only receiver on the market that provides real 5Hz update rate for iOS apps. AGPS and DGPS enabled. Accuracy: 2.5m, max altitude: 18000m, max velocity: 515m/s, max acceleration: 4G. Two bi-color LED status indicators (customizable for night viewing). Fast GPS lock times: : 1sec (hot start), 30secs (warm start), 35secs (cold start, 15secs with AGPS data uploaded).
1 new from $74.99 1 used from $50.00

Product Features

  • Size (LWH): 1.18 inches, 0.96 inches, 0.35 inches
  • Weight: 0.32 ounces
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Product Description

Emprum's UltiMate GPS plugs directly into the 30pin dock connector of your iPod touch, iPhone and iPad and can be used with your PC (Mac/Windows/Linux) as well.

The GPS receiver is powered either by your iPod touch, iPhone or iPad, or over USB from your computer or wall charger.

How do we differ from the competition?

Emprum's UltiMate GPS provides a real 5Hz location update rate for app store apps. The competition may claim a 5 or 10Hz update rate, but only works at 1Hz with app store apps. The UltiMate GPS also uses a dependable and proven GPS engine that is known for its high accuracy and fast lock times.

The receiver comes with the free UltiMate GPS App available on the App Store with which you can fully control your receiver, including its LED indicators. The UltiMate GPS App provides compass and satellite views, satellite signal-to-noise ratio (SNR), firmware updates and more.

Visit the Emprum website for full product and user manuals for the UltiMate GPS receiver and the UltiMate GPS App, and for drivers for your PC.

This receiver is enabled to use AGPS data (available from the UltiMate GPS App) for even faster cold start lock times down to 15secs. The receiver is designed around a well-proven MTK chipset that has 51 satellite tracking channels and that is DGPS enabled (SBAS, WAAS, EGNOS, MSAS) and the receiver retains most recent satellite data after power-off.

The included USB cable with quick-connect button is custom designed by Emprum and allows for a full 2.1A charging current (which is e.g. required for your iPad).

This receiver works on all iPod touch models (1st, 2nd, 3rd and 4th generation), all iPhone models (iPhone,iPhone 3G and 3Gs,iPhone 4 and 4S) and all iPad models (iPad,iPad 2,iPad 3) as well as your PC.

Note: This receiver does not provide internet or WiFi access and is best used with applications that do not require a continuous internet connection.


Product Information

Product Dimensions 1.2 x 1 x 0.3 inches
Item Weight 0.3 ounces
Shipping Weight 1.6 ounces
ASIN B005I0JYUY
Item model number UM3993
Batteries Lithium Metal batteries required.
Customer Reviews
3.0 out of 5 stars 70 customer reviews

3.0 out of 5 stars
Best Sellers Rank #277 in Electronics > GPS & Navigation > Sports & Handheld GPS > Handheld GPS Units
#2,248 in Electronics > Accessories & Supplies > GPS System Accessories
#7,153 in Sports & Outdoors > Sports & Fitness > Hunting & Fishing > Hunting > Hunting Accessories

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

To understand the background of this review, I'm developing apps for the iPhone, specifically for track day use / car racing ([...] I have no stake in Emprum.

Latest iPhones and iPads come with reasonable internal GPSs. Good enough for doing some Google Maps or other navigation. These internal sensors are not leading edge in terms of quality and update rate when it comes to more specific, or more demanding scenarios - like data recording in a car. In addition to this, there are iPods and some iPads not featuring internal GPS - another situation you may think about an external GPS like the UltiMate GPS.

I've tested almost all solutions in the market and found the UltiMate GPS lately. This is clearly the most thoughtfully designed device I've seen. As the only external devices certified by Apple featuring 5 Hz update rates, it has a unique position currently. From a form factor, it fits very well to the iPhone4. As all this small gadgets, you certainly need to take care not to handle the micro USB too rough, but it is best in class again.

Receiver quality is very high, and at high accuracy once the first fix is obtained (which takes longer than the internal AGPS for all external devices).

Support is responsive and of high quality, you will talk to the developer himself most of the time.

Strong recommendation - especially compared to the other similar sized dongles in the market.

P.S. I'm not a native speaker, so forgive typos / grammar.
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By Steve S. on February 20, 2012
Verified Purchase
I bought this unit for my iPod Touch, so my review only speaks to what I have found using it with that piece of gear. As I understand it, the unit will work with many other apple products and even other operating systems, and drivers are available on their website. The included USB cord powers the unit and charges your iPod. As with any GPS, it will use up your battery quickly if it is left on, but the iPod Touch has good power management software to help mitigate the drain.

Prior to receiving the unit, I downloaded the app specifically for it. The day I received the unit, the app updated itself. I then plugged the unit in and immediately the app pushed a firmware upgrade to the unit. I also pushed fresh AGPS data to it. Initially the unit took a couple minutes to lock onto the satellites, just as the manual said. Once done, I had plenty of satellites. Susequent warm and hot restarts were very fast. The unit also has a small internal battery that helps maintain its data. That charges very quickly. The unit itself does not block access to the headphone jack on the bottom of my iPod Touch. The unit has a couple of multi-colored lights for various states of charge and satellite acquisitions status. It is tiny and light-weight. I do not have a hard case yet, so I don't know which ones would or would not work the this unit.

Once satellites were locked, the unit was able to supply GPS data to any app that needed it. I tried it with several GPS programs including Latitude and Google Maps and it was fine. Sensitivity was good enough to pull a GPS lock inside my house.

One thing to remember - if your tablet or phone lacks a built-in compass, this GPS will only give you a compass reading when you are moving.
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I bought this to use with Harry's Lap Timer for my track day events. I have tested it and so far it has performed flawlessly. The initial GPS acquisition took some time so be patient but after that it has been smooth sailing.

The only thing I do not like about it is that it doesn't use a traditional mini usb cable for power.
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I wish this was a little less expensive, but its still an awesome device and works very well. It worked immediately for me... I didn't have to do the battery charging overnight as the instructions suggest, perhaps because the developer charged it before sending it out. In any case, there is one thing that people should note:

I'm not sure if its the same with every GPS program, but with CoPilot Live Premium on the iPad, I had to make sure the Emprum app was closed, otherwise CoPilot wouldn't recognize that I had a GPS at all. As soon as I closed the Emprum app, BOOM, great GPS signal and everything worked fine.

If you are getting this to have navigation in your car, make sure you get a program that has offline maps, like CoPilot. I first tried Motion X GPS Drive because of the great reviews. Well, if you are like me and have a device that doesn't have a 3G signal, Motion X Drive won't work because it updates the map in real time. You MUST have a program with "offline maps".
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I had this unit for a while. It has been working well.
It is fast re-locking onto the GPS signal, especially when switching apps. Typically it only takes a few seconds to re-lock. Another nice feature is that if the USB cable is plugged in, the GPS engine stays while switching apps and there is no need to re-lock at all. Another feature that I like is The UltiMate GPS unit works on my laptop computer over USB.
It looks very nice and very easy to see indicator lights on the front.
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