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Accuracy

Device reviews

Thinking of getting a GPS receiver to add data to OSM? These reviews are here to help. If you think about other mapping related hardware too, look at the Hardware Guide.

If you buy a GPS unit via any of our retail partners then up to 10% of the purchase price will be donated to OpenStreetMap. This helps to help keep our servers running. See the Shop for details.

The correct term is GNSS (Global Navigation Satellite System), though the most common system GPS have become the name most people use (if you go to your local shop and ask for a GNSS, the clerk will probably not know what you mean).

Legend for the summary tables

Units are listed alphabetically.

Type can be:

• Data Logger: the GNSS includes an automatic geographic position logging system with extraction possibility to another electronic device
• Recreational: the GPS receiver can either simply deliver a geographic position for another device or display it on a simple screen with no navigation facility.
• Navigator: the GNSS includes a screen with maps and software for turn-by-turn navigation assistance
• Mobile Phone: the GPS is included in a mobile phone device
• Smartphone: probably the most abundant GPS device these days
• Professional GNSS: the GNSS is designated for massive or accurate geographic survey. Many such devices also combines the various GNSS technologies, such as combined GPS/Glonass receivers and evaluate the different carrier signals.

Glonass is also available as a backup/augmentation in some GPS receivers, but at the moment not available as standalone handheld units.

Storage can be:

Internal	MultiMedia (MMC)	Secure Digital (SD)	None
Specify the capacity	, or	, SD Mini, or Error creating thumbnail:	none

Common GPS chipsets are:

• SiRFStar I, II, IIe, IIe/LP, IIt, III
• SiRFLoc
• SiRFXTrac
• Nemerix
• RFMD
• MTK
• Sony Solution
• u-Nav + iTrax 3rd Gen
• Atmel Antaris 4l
• u-blox
• Ublox
• Xemics
• HP6515 AGPS
• Skytraq Venus 5
• Skytraq Venus 6

Methods of DGPS correction / Augmentation can be

• SBAS (WAAS, EGNOS, MSAS), Beacon, NTRIP, Direct IP, IALA are free services, with various coverage.
• Spotbeam, Inmarsat, Veripos, HP/XP are semiglobal services but requires licenses and are not likely in handheld units.
• Corrections can be transmitted as proprietary formats, single station corrections, or 'RTCM' format correction list. Some receivers might use RTCM as identifier for corrections, but the source than is one of the systems mentioned above.

Alternative forms of GNSS are named according to the promoters of the satellite constellations: the existing GPS system properly named, Glonass, Galileo (still in deployment), and BeiDou (COMPASS). On devices equiped with tuners capable of hearing multiple constellations, it may be possible to get more precision and better coverage than what can be done today with just the GPS alone (some newer constellations will provide additional services not limited to one-way geolocating, such as Argos-style emergency signals for search and rescue).

AGPS is an abreviation for Assisted GPS, and is usually an enhancement for GPS-enabled cell phones. It allows receivers quicker startup time, as well as continuing to give positions with weak or missing satellite data.

Connectivity can be achieved by:

WiFi	Bluetooth	NFC/RFID	USB	PS/2	Serial RS232
	Error creating thumbnail:	)))

GNSS: Global navigation satellite system (GNSS) that can be received. Possible values are

• GPS
• GLONASS
• Galileo
• BeiDou

As of 2021, some recent smartphones claim to support Galileo but in fact do not work with it. This includes the Fairphone 3 and 3+; Motorola Moto G Power and Moto G30. On the other hand, the Xiaomi Mi A2 Lite does not claim Galileo support (including on the manufacturer's own page), yet it works. The Samsung S10e is also confirmed to work.

Measured DRMS accuracy: Horizontal RMS (root mean square, or Distance Root Mean Square, DRMS) deviation of the measured position from the true (or long-term averaged) position. Should be assessed by measuring a point cloud under good visibility conditions for at least several hours. Not to be confused with the DOP accuracy estimation, which may not match the actual obtained accuracy.

Dual-frequency: If the device can use two frequencies for accuracy enhancement, such as E1/E5a for Galileo or L1/L5 for GPS.

Summary table

Brand	Name	Type	release date	GPS Chipset	No Channel	Augmen­tation	Data Logging Capacity	Storage	Connec­tivity	Estimated Price	Supports DOP	GNSS	measured DRMS accuracy	Dual-frequency
Xiaomi	Mi 8	Smartphone	2018	Broadcom BCM47755	?	?	64 GB	64 GB internal	Error creating thumbnail:	300 €	VDOP, HDOP	GPS, GLONASS, BeiDou, Galileo	1.0 m	yes
Huawei	Mate 20	Smartphone	2018		?	?	128 GB	128 GB internal	Error creating thumbnail:	400 €	yes	GPS, GLONASS, BeiDou, Galileo		yes
Fairphone	3+	Smartphone	2020	Qualcomm SDM632	?	?	micro-SD	64 GB internal	Error creating thumbnail:	430 €	HDOP, VDOP	GPS, GLONASS, BeiDou, Galileo	~5 m	no
Holux	M-241+	Data Logger, Recreational	2018	MediaTek MT3333	66	WAAS, EGNOS, MSAS	250,000	?	Error creating thumbnail:	110 €		GPS, GLONASS	?	no
ClearEvo	EcoDroidGPS	Professional GNSS for Android	2017	UBLOX M8030	72	SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN	no	no	Error creating thumbnail: (tested 6 simultaneous Android phone connections)	85 US$		GPS, GLONASS, Galileo	?	no
Holux	RCV-3000	Data Logger	2017 (2010 old version/first generation )	MediaTek MT3333 (MediaTek MT3329 for old version/first generation)	66	WAAS, EGNOS	250,000	Internal 4MiB	Error creating thumbnail: (standard USB cable with USB mini-B plug)	83 ~Euros (03/2018, amazon.de)	Yes (NMEA output); No (logging to memory)	GPS, GLONASS	?	no
Huawei	P10	Smartphone	2017	Broadcom BCM4774	?	?	64 GB	64 GB internal	Error creating thumbnail:	250 €	yes	GPS, GLONASS, BeiDou, Galileo	4.3 m	no
Mio	Cyclo 605 HC	Navigator (Cycle)	2017-06	U-blox 7	56	?	?			360 €		GPS, GLONASS	?	no
Samsung	Galaxy S7	Smartphone	2016	Qualcomm Snapdragon 820 MSM8996	?	yes	32 GB	32 GB internal	Error creating thumbnail:	300 €	VDOP, HDOP	GPS, GLONASS, BeiDou	5.1 m	no
Garmin	GPSmap 276Cx	Outdoor mapping GPS	2016	?	?	WAAS, EGNOS	Internal 8GB	Error creating thumbnail:		600 US$	?	GPS, GLONASS	?	no
GNS Electronics	GNS3000	Recreational; inbuilt battery	2020	Mediatek MT3333	99	WAAS, EGNOS, QZSS, MSAS, GAGAN	SD card	Internal	Error creating thumbnail: (charged over USB-C)	126 €	yes	GPS, GLONASS, Galileo	?	no
GNS Electronics	GNS 2000 PLUS	Recreational; inbuilt battery	2016-12	Mediatek MT3333	99	WAAS, EGNOS, QZSS, MSAS, GAGAN	54k (date/pos every 5s)	Internal	Error creating thumbnail: (charged over Mini-USB)	96 €	yes	GPS, GLONASS, Galileo, BeiDou	?	no
Garmin	eTrex 35 touch	Data Logger, Navigator	2015	MediaTek	?	WAAS, EGNOS	10k, 200 routes, 10000 points, 200 tracks or to SD-card	Internal, Error creating thumbnail:		245 $	no	GPS, GLONASS	?	no
Navilock	NL-8002U	GPS receiver module	2014	u-blox UBX-M8030	72	WAAS, EGNOS, QZSS, MSAS	no	no		70 € [1]	yes	GPS, GLONASS, BEIDOU, Galileo	?	no
Samsung	Galaxy S5	Smartphone	2014	Qualcomm Snapdragon 801 MSM8974AC	?	yes	32 GB	32 GB internal	Error creating thumbnail:	200 €	VDOP, HDOP	GPS, GLONASS, BeiDou	1.7 m	no
Navilock	BT-821G	Recreational	2014	Mediatek MT3333	33	WAAS, EGNOS, QZSS, MSAS, GAGAN	no	no	Error creating thumbnail: (charged over 5V DC power jack 4.0mm x 1.7mm Center PLUS)	90 €	yes	GPS, GLONASS	?	no
Solmeta	Geotagger Pro2	Data Logger with Compass	2013	MediaTek MT3339	22	EXIF and internal	2GB	internal	Nikon Cord	200 US$		?	?	no
Transystem	i-Blue 747ProS	Data Logger, Recreational	2013	MediaTek II	66	WAAS, EGNOS, MSAS, AGPS	250k	Internal 8 MiB		75 € (amazon.de) (~$80 on eBay.com) (2014-03-20)	?	GPS	?	no
Bad Elf	GPS-2200	Recreational, data logger	2012	MediaTek	66	SBAS, WAAS, EGNOS, MSAS	360,000 (100 hrs at 1 Hz)	64 MiB internal	Error creating thumbnail: (to Apple iOS)	150 US$		GPS	?	no
Bad Elf	GPS-2300-GPS Pro+	Recreational, data logger	?	?	66	WAAS, EGNOS, MSAS	? (65 hrs at 1 Hz)	?	Error creating thumbnail:	?	?	GPS	?	no
Ventus	G730	Data Logger	2012	SkyTrac Venus 6	65	WAAS, EGNOS	256,000 points	Internal		45 £ - 60 £	?	?	?	no
Royaltek	RGM-4600	Recreational	2012	SiRFstarIV	48	no	0	no				?	?	no
Wintec	WBT-202	Data Logger	2011	u-blox Antaris 5	18 (tracking), 32 (aquisition)	WAAS, EGNOS	260k internal / 134M with 2GB microSD	Internal and Error creating thumbnail: (64 MB-2 GB)	Error creating thumbnail:	109 € (2009-10-24)		?	?	no
Garmin	eTrex 10	Data Logger, Navigator	2011	MediaTek	?	WAAS, EGNOS	10k	Internal		119 € / $109.99 / £99.99	no	GPS, GLONASS	?	no
Qstarz	BT-Q1000XT	Datalogger, recreational	2010	MediaTek II	66	?; A-GPS	400.000 (42 hours logging at 1Hz)	no	GPS: Error creating thumbnail: log: Error creating thumbnail:	?	?	GPS	Horizontal: 3.0m 2D-RMS <3m CEP(50%)	no
Qstarz	BT-Q1000X	Datalogger, recreational	?	MediaTek II	66	DGPS(WAAS, EGNOS, MSAS), A-GPS	200.000 (42 hours logging at 1Hz)	no	GPS: Error creating thumbnail: log: Error creating thumbnail:	?	?	GPS	Horizontal: 3.0m 2D-RMS <3m CEP(50%)	no
Qstarz	BL-1000GT racing recorder	Datalogger, recreational	?	MediaTek MK3333	?	?	? (20 hours logging at 10Hz)	?	GPS: Error creating thumbnail: log: Error creating thumbnail:	?	?	GPS, GLONASS	?	no
Qstarz	BL-1000ST travel recorder	Datalogger, recreational	?	MediaTek MK3333	?	SBAS (WAAS, EGNOS, MSAS, GAGAN); A-GPS	? (25 hours logging at 1Hz)	Error creating thumbnail: 16GB	Error creating thumbnail:	?	?	GPS, GLONASS	3m (2D-RMS) SBAS: 2.5m(CEP)50 % (SBAS :WAAS, EGNOS, MSAS, GAGAN)	no
Magellan	eXplorist 510	Data Logger, Navigator	2010	SiRFstarIII	20	WAAS/ EGNOS/ MSAS	500 MB	Error creating thumbnail:		220 €		?	?	no
Geneq	SX Blue II GPS	Recreational	2010	?	10 + 2	WAAS, EGNOS, MSAS, GAGAN	0	0	Error creating thumbnail:	1500 €	HDOP VDOP PDOP	GPS	0.3 m (claimed by manufacturer)	no
Holux	GPSport 260	Recreational	2010	MediaTek MT3329	66	?	160,000	Internal 4 MiB		$340	?	GPS	2.5 m (claimed by manufacturer)	no
Umax	i-gotU GT-120/USB	Data Logger	2009	SiRF III	20	WAAS, EGNOS	65,000	Internal		45 €	no DOP, but EHPE available	?	?	no
Columbus	V-990 (Mark II)	Data Logger, Recreational	2009	MediaTek MT3339	66	WAAS, EGNOS, MSAS	50,000,000 (36 hours @ 1Hz)	Error creating thumbnail: max. 4 GiB		89 €	VDOP, HDOP, PDOP	GPS	Horizontal: 2.5m/CEP(50%); 8.0m/CEP(95%)	no
Columbus	P-1	Data Logger, Recreational	?	MediaTek MT3339	?	?	4,600,000,000 (55 hours @ 10Hz)	Error creating thumbnail: max. 256 GiB		159 €	?	GPS	Horizontal: 2.5m/CEP(50%); 8.0m/CEP(95%)	no
Columbus	P-10 Pro	Data Logger, Recreational	2021	Broadcom BCM47755	?	SBAS, WAAS, EGNOS, MSAS	4,600,000,000 (55 hours @ 1Hz or 5 Hz)	Error creating thumbnail: max. 256 GiB		239 €	HDOP	GPS L1 and L5, GLONASS L1, Galileo E1 and E5a, BeiDou B1, QZSS L1 and L5, IRNSS L5 (?)	Horizontal: 0.5m/CEP(50%), 1.5m/CEP(95%)	yes
Garmin	Nüvi 205	Navigator	2009	SiRFstarII ?	?	no	940 MiB Internal memory and microSD-card	Error creating thumbnail:		Discont'd	no	GPS	?	no
Columbus	V-900 (Mark II)	Data Logger, Recreational	2009	MediaTek MT3339	66	WAAS, EGNOS, MSAS	50,000,000 (36 hours @ 1Hz)	Error creating thumbnail: max. 4 GiB	Error creating thumbnail:	109 €	VDOP, HDOP, PDOP	GPS	Horizontal: 3.0m/CEP(50%); 5.0m/CEP(95%)	no
Holux	GPSport 245	Recreational	2009	MediaTek MT3318	32	?	200,000	Internal 4 MiB		$180		GPS	?	no
Apple	IPhone 3G	Smartphone	2008		?	?	8 GB	8 GB internal	Error creating thumbnail:	200 $	?	GPS	8.3 m	no
Garmin	Oregon 300	Outdoor mapping GPS	2008	STM STA2062 "Cartesio"	32	WAAS, EGNOS	850 MiB internal or microSD-card (4 GiB work well)	Error creating thumbnail:		300 € (Amazon.com)		?	?	no
GlobalSat	BT-368	Recreational	2008	SiRF Star III	20	WAAS, EGNOS, MSAS	0	no	Error creating thumbnail:	47 GB£		GPS	?	no
Garmin	GPSmap 60CSx	Outdoor mapping GPS	2007	SiRFstarIII	12	WAAS, EGNOS	Internal or up to 4 GiB SD-card (since FW 3.90)	Error creating thumbnail:		294.15 US$ (Amazon.com)		GPS	?	no
Garmin	Nüvi 760	Navigator	2007	SiRFstarII	?	?	Internal 10,000 points	up to 4 GiB	Error creating thumbnail:	300 ~€		GPS	?	no
GiSTEQ	CD110BT	Data Logger	2007	MediaTek	51	?	internal 150,000 points	internal 4 MiB	Error creating thumbnail:	60 GB£~		GPS	?	no
Geonaute	Keymaze 300 (see [2] for OSS driver)	Outdoor Mapping GPS	2007	SiRF Star III	?	WAAS	internal 200 points	internal		89 ~€		?	?	no
GlobalSat	DG-100	Data Logger	2007	SiRF Star III	20	WAAS	60k	Internal		110 US$		GPS	?	no
GlobalSat	BT-821C	Recreational	2007	Mediatek MT3339	66	WAAS, EGNOS, QZSS, MSAS, GAGAN	no	no	Error creating thumbnail: (charged over 5V DC power jack 4.0mm x 1.7mm Center PLUS)	50 US$	yes	GPS	?	no
GlobalSat	BT-335	Data Logger, Recreational	2007	SiRF Star III	20	WAAS, EGNOS	60k	Internal	Error creating thumbnail:	80 €		GPS	?	no
GlobalSat	BT-359	Recreational	2006	SiRF Star III	20	WAAS, EGNOS	0	no	Error creating thumbnail:	80 US$		GPS	?	no
GlobalSat	BR-355	Recreational	2005	SiRF Star III e/LP	20	WAAS, EGNOS	0	no		60 US$		GPS	?	no
GlobalSat	BU-353	Recreational	2005	SiRF Star III e/LP	20	WAAS, EGNOS	0	no		28-57 GB£		GPS	?	no
GlobalSat	BT-338	Recreational	2005	SiRF Star III	20	WAAS, EGNOS	0	no	Error creating thumbnail:			GPS	?	no
GlobalSat	BU-303	Recreational	2005	SiRF Star II e/LP	12	no	0	no		50 €		GPS	?	no
GlobalSat	BT-308	Recreational	2003	SiRF Star II e/LP	12	WAAS	0	no	Error creating thumbnail:			GPS	?	no
GlobalSat	BR-305	Recreational	2003	SiRF Star II e/LP	12	no	0	no		50 US$		GPS	10 m (claimed by manufacturer)	no
GlobalSat	BR-304	Recreational	2003	SiRF Star II e/LP	12	no	0	no		50 US$		GPS	10 m (claimed by manufacturer)	no
Bad Elf	GNSS Surveyor (BE-GPS-3300)	Data Logger	2014	u-blox7	56	WAAS, EGNOS, MSAS, QZSS	200 hours at 1 Hz	16 MB	Error creating thumbnail: (iOS) (MSC)	600 USD	HDOP	GPS, GLONASS		no

See also

• RTKLIB-compatible GPS devices, for raw data outputting devices.