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Nikon D3100 vs Nikon D7500

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

NikonD3100NikonD7500
Overview
ReleasedSeptember 2010June 2017
Image and sensor
Camera typeDSLRDSLR
Sensor formatAPS-CAPS-C
Sensor typeCMOSCMOS
Sensor dimensions23.1 × 15.4 mm23.5 × 15.7 mm
Effective resolution14.2 MP20.9 MP
Largest image4608 × 30725568 × 3712
RAW recordingYesYes
Standard ISO range100–3200100–51200
Sensor detail14.2 million effective and 14.8 million total pixels; Nikon DX format with approximately 1.5× lens focal-length equivalent; sensor-cleaning system and Image Dust Off reference dataUK effective resolution rounded to 20.9 MP; Japan specifies 20.88 million; 21.51 million total pixels, no optical low-pass filter, sensor cleaning and image-dust-off reference data
Image formatsNEF RAW, JPEG and simultaneous RAW plus JPEG; Standard, Neutral, Vivid, Monochrome, Portrait and Landscape Picture Controls; in-camera RAW processing and retouching12/14-bit NEF RAW with lossless or ordinary compression; JPEG and RAW plus JPEG
ISO detailISO 100–3200 in one-stop steps; expanded ISO 6400 and 12800 equivalents; Auto ISOExpandable to equivalent ISO 50–1640000; Auto ISO available
Image processorEXPEED 2EXPEED 5
Lens and shooting
Lens mountNikon F mountNikon F mount
StabilisationOptical lens stabilisationOptical lens stabilisation
Maximum continuous burst3 fps8 fps
Lens detailAutofocus with AF-S and AF-I NIKKOR lenses; no body autofocus motor for screw-drive lenses. Other compatible AF lenses require manual focus. Non-CPU lenses work in manual exposure without metering; IX and F3AF lenses unsupported; electronic rangefinder requires maximum aperture f/5.6 or fasterDX-format angle of view approximately 1.5× FX focal length; supported G/E/D, AF and P lenses with restrictions. AI non-CPU lenses usable in manual mode with no metering; non-AI, IX and F3AF lenses unsupported.
AutofocusMulti-CAM 1000; 11 phase-detection points including one cross-type; -1 to +19 EV at ISO 100, 20°C; AF-S/AF-C/AF-A, single-point, dynamic, auto-area and 11-point 3D tracking; AF-assist lamp. Live view uses contrast-detection AF-S/AF-F with face-priority, wide, normal and subject-tracking areasViewfinder Advanced Multi-CAM 3500II phase detection with 51 points, 15 cross-type and centre point supporting f/8; −3 EV sensitivity at ISO 100 and 20°C. Dynamic, 3D tracking and group-area modes; live view uses contrast detection with face, wide, normal and subject-tracking modes.
Shutter1/4000 to 30 seconds in one-third stops and Bulb; flash sync 1/200 second1/8000 to 30 seconds, Bulb and Time; mechanical focal-plane shutter and electronic front-curtain in mirror-up mode. Flash sync 1/250 second; up to 1/320 with reduced guide number, and compatible Auto FP.
Burst detailApproximately 3 fps under Nikon's manual-focus, S/M, 1/250-second-or-faster test conditions; Japanese specification lists up to 13 RAW, nine RAW plus Fine JPEG or 100 Fine JPEG frames with its specified 4 GB SanDisk Extreme SDHC cardHigh-speed continuous approximately 8 fps with AF/AE tracking; low-speed 1–7 fps. Nikon states up to 50 lossless-compressed 14-bit RAW frames or 100 large Fine JPEGs under its published test conditions.
Stabilisation detailOptical VR depends on the lens; no sensor-shift stabilisationNo sensor-shift stabilisation; optical VR depends on the attached lens. Electronic movie VR for Full HD/HD, unavailable for UHD.
FlashBuilt-in pop-up flash; guide number approximately 12 m at ISO 100, 20°C, or 13 at manual full output; hot shoe; optional AS-15 adapter for PC syncBuilt-in pop-up flash, guide number approximately 12 at ISO 100 in metres and 20°C; i-TTL, optical commander support and ISO 518 hot shoe. Optional AS-15 provides a sync terminal.
Exposure controlsP/S/A/M, Auto, flash-off Auto and scene modes; beginner Guide mode with illustrative assist images. 420-pixel RGB metering with Colour Matrix Metering II, centre-weighted and spot modes; ±5 EV compensation; Active D-Lighting on/offAuto, P/S/A/M, scenes, effects and U1/U2 settings; ±5 EV compensation; 180K-pixel RGB metering sensor
Video
Highest video resolution1920 × 1080 at 24 fps3840 × 2160 at 29.97 fps
Video detailH.264 MOV at Full HD 24p, 720p 30p/25p/24p or 640 × 424 at 24p; actual NTSC rates 29.97/23.976. Maximum clip ten minutes. Nikon USA's short movie feature list incorrectly describes 640 × 424 as 30 fps; its detailed table and Japan specify 24p. Continuous contrast-detection autofocus availableUHD 3840 × 2160 at 29.97/25/23.976p uses an approximately 16.2 × 9.1 mm movie crop regardless of still-image area; Full HD up to 59.94p, HD up to 59.94p. H.264 MOV/MP4, limit 29 minutes 59 seconds; simultaneous clean HDMI output and card recording; in-camera UHD/Full HD time-lapse.
AudioBuilt-in mono microphone with linear PCM recording; no external microphone inputBuilt-in stereo microphones, external 3.5 mm microphone input and headphone output; PCM or AAC depending on file format
Screen and viewfinder
ViewfinderOpticalOptical
Screen size3″3.2″
Screen dots230,000922,000
Touchscreen–Yes
Tilting screen–Yes
Display detailFixed 3-inch TFT, approximately 230000 dots, adjustable brightness; dots count subpixelsTilting TFT, approximately 100% coverage and 170° viewing angle; eyepiece sensor can switch monitor off; dots count subpixels
Viewfinder detailPentamirror; approximately 95% frame coverage, 0.8× magnification with 50mm f/1.4 at infinity and 18 mm eyepointPentaprism, approximately 100% DX coverage or 97% in the 1.3× crop; 0.94× magnification with 50mm f/1.4 at infinity, 18.5 mm eyepoint and −2 to +1 dioptre adjustment
Connections and design
Wi-Fi–Yes
Bluetooth–Yes
Battery life (maker's claim)550 photographs950 photographs
Body weight455 g640 g
Release detailNikon Japan records sale on 16 September 2010 for the body, single-lens and double-zoom kitsAnnounced on 12 April 2017; Nikon Japan's release states June availability and its current overview confirms 9 June there. Main retains June without inferring an exact UK first-sale day.
Recording mediaOne SD/SDHC/SDXC card slot; compatible Eye-Fi cards supportedSingle UHS-I SD/SDHC/SDXC card slot
PortsHi-Speed USB, mini-HDMI Type C, NTSC/PAL analogue video output and accessory terminal for optional MC-DC2 remote or GP-1 GPSHi-Speed USB Micro-B, mini HDMI Type C, 3.5 mm microphone and headphone sockets, accessory terminal for MC-DC2 and compatible wireless remotes
Wireless connectionsNo integrated Wi-Fi, Bluetooth or GPS; optional GP-1 GPS and compatible Eye-Fi card accessoriesWi-Fi IEEE 802.11b/g and Bluetooth 4.1; SnapBridge; optional ML-L3 infrared remote
Battery life detailEN-EL14; approximately 550 CIPA photographs. Nikon USA's later page also lists EN-EL14a compatibilityEN-EL15a/15b or EN-EL15; maker claim approximately 950 CIPA single-frame shots. EN-EL15c may be supplied.
ChargingExternal MH-24 charger; optional EH-5a adapter with EP-5A power connectorExternal MH-25a charger; optional EH-5c/EH-5b AC adapter and EP-5B power connector
DimensionsApproximately 124 × 96 × 74.5 mm from Nikon Japan; Nikon USA's converted inch figures differ slightlyApproximately 135.5 × 104 × 72.5 mm
Weight detailApproximately 455 g body only or 505 g with battery and SD card, excluding body capApproximately 640 g body only or 720 g including battery and SD card, excluding body cap
Materials–High-rigidity carbon-fibre composite monocoque body; weather sealing; maker operating range 0–40°C
In the boxEN-EL14 battery, MH-24 charger, DK-5 eyepiece cap, DK-20 eyecup, AN-DC3 strap, BF-1B body cap, BS-1 shoe cover, ViewNX 2 CD-ROM and two ferrite cores for separately supplied USB/audio-video cablesEN-EL15-series battery, MH-25a charger, UC-E20 USB cable, AN-DC3 BK strap, BF-1B body cap, DK-5 eyepiece cap and DK-28 eyecup; battery revision may vary

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