Written by Ernie in Golf Tips Last Updated August 23, 2026
The Blue Tees Series 4 Ultra rangefinder combines a 1200-yard published maximum range with 6× magnification and a published accuracy of ±1 yd. Its feature set includes slope compensation and a magnetic cart mount. The published flag range is 350 yards, equal to 29% of the total ranging claim. Derived comparison data works out to 159 yd of range per ounce, 61/100 portability efficiency and 61/100 range efficiency.
Golf rangefinder specifications
Blue Tees · Series 4 Ultra · Laser
Year: 2024Max range: 1200 ydMagnification: 6×Accuracy: ±1 ydWeight: 7.5 oz
7.5 ozWeight
Rangefinder benchmarks
How this model compares
Benchmarks compare this rangefinder with the other dense-spec models in this database.
Maximum range
Above average
1200 yd
Low300 yd
This model1200 yd
Average997 yd
High1600 yd
Weight
Near average
7.5 oz
Low3.7 oz
This model7.5 oz
Average7 oz
High14 oz
Magnification
Near average
6×
Low4×
This model6×
Average6×
High7×
Portability efficiency
Above average
61/100
Low1/100
This model61/100
Average46/100
High98/100
At a glance
Rangefinder profile
Slope compensationYes
GPSNo
StabilizationNo
Cart magnetYes
RechargeableNo
Weather ratingIP54
Overview
Model information
Manufacturer
Blue Tees
Model
Series 4 Ultra
Category
Golf Rangefinder
Release year
2024
Status
Current
Rangefinder type
Laser
Derived numeric specs
Useful comparison metrics
These figures are calculated from the published measurements above to make size, range and portability easier to compare.
Range & portability efficiency
Range per ounce159 yd/oz
Flag range per ounce46.4 yd/oz
Flag range vs total29%
Calculated exit pupil3.5 mm
Portability efficiency61/100
Range efficiency61/100
What the numbers mean
Search profileslope rangefinder; golf rangefinder with magnet
Portability classMidweight
Range classLong range
Feature classSlope laser
Best forCart golfers; Elevation-heavy courses
Full specifications
Technical details
Laser & ranging
Maximum range1200 yd
Flag range350 yd
Minimum range5 yd
Accuracy±0.984 yd
Measurement speedNot published
Scan modeNot published
Flag lockFlag Lock
Lock feedbackNot published
Optics & display
Magnification6×
Objective lens21 mm
Field of viewNot published
Eye reliefNot published
Exit pupil3.5 mm
DisplayOLED
Display colorNot published
Diopter adjustmentNot published
Slope, tournament & smart features
Slope compensationYes
Slope toggleYes
Tournament legalYes
Tournament indicatorNot published
Image stabilizationNot published
GPS built inNot published
BluetoothNot published
Smartphone appNot published
Power, size & protection
Battery typeCR2
RechargeableNot published
Battery lifeNot published
Charging portNot published
DimensionsDimensions or weight not fully published
Weight7.5 oz / 214 g
Water ratingIP54
Warranty2 years
Derived comparison
Practical rangefinder snapshot
Calculated from the published specifications to make range, size and portability easier to compare.
The Blue Tees Series 3 Max+ rangefinder combines a 1000-yard published maximum range with 6× magnification and a published accuracy of ±1 yd. Its feature set includes slope compensation, a magnetic...
The Blue Tees Captain Pro rangefinder combines a 1200-yard published maximum range with 7× magnification and a published accuracy of ±0.5 yd. Its feature set includes slope compensation, GPS...