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OM SYSTEM OM-3 vs Ricoh GR IV

The Ricoh GR IV is 29.9 mm narrower, 27.8 mm shorter, 13.1 mm thinner and 234 g lighter than the OM SYSTEM OM-3. The Ricoh GR IV takes up 61 % less space (the box around the body, without lens).

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OM SYSTEM OM-3

OM SYSTEM OM-3
Width × height × depth
139.3 × 88.9 × 45.8 mm (5.48 × 3.50 × 1.80 in)
Weight
496 g (17.5 oz)
Mount
Micro Four Thirds
Price
$1,700 at Adorama

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Ricoh GR IV

Ricoh GR IV
Width × height × depth
109.4 × 61.1 × 32.7 mm (4.31 × 2.41 × 1.29 in)
Weight
262 g (9.2 oz)
Mount
Fixed lens
Price
$1,567 at Adorama

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Specifications compared

OM-3GR IV
Resolution20.4 MP26 MP
SensorFour ThirdsAPS-C BSI CMOS (23.3 x 15.5 mm)
StabilizationSensor-Shift5-axis in-body, up to 6 stops
ISO200–25,600100–204800
Shutter speed1/32000–60 s1/4000–30 s (electronic 1/16000)
BurstUp to 120 fps–
Video4K internal1080p 60p
ViewfinderElectronic (OLED) · 2,360,000 Dot · 1.23xNone (optional optical viewfinder)
ScreenArticulating 3" Touchscreen LCD3.0" 1.04M-dot fixed touch
Card slotsSingle Slot: SD/SDHC/SDXC (UHS-II)Internal 53 GB, 1x microSD UHS-I
BatteryBLX-1DB-120, about 250 shots (CIPA)
Dimensions139.3 x 88.9 x 45.8 mm109.4 x 61.1 x 32.7 mm
Weight496 g with battery & card262 g
Autofocus1053-point cross-type hybrid AF, subject detectionHybrid PDAF/contrast AF, face/eye detection
Lens–28mm F2.8 (35mm equivalent), built in

Values that differ are in bold. From the makers' published specifications.

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