Samsung Galaxy S25 series tech specs (S25, S25+, S25 Ultra)

17 July 2025

2 mins read

Haziq

Tech Expert for Back Market UK, Ireland & Australia

When debuting the Samsung Galaxy S25 series, Samsung's mantra seems to have been “if it ain't broke, don't fix it,” as the latest flagship closely resembles last year's Galaxy S24 series. It retains several design elements, including storage options as well as pricing. While the new phones may not introduce major innovations, they excel in consistency and practicality. If you're curious about Samsung's latest flagship lineup, here's how the Galaxy S25 models compare in terms of screens, specs, configurations, and features.

Samsung Galaxy S25 tech specs 

The Samsung Galaxy S25 is the entry-level model of the S25 series. It is the most compact option, combining premium hardware with cutting-edge technology in a sleek, manageable size.  

Samsung Galaxy S25+ tech specs 

The Samsung Galaxy S25+ offers almost every perk of the Galaxy S25 Ultra in a more compact, lightweight, and affordable package. Highlights include a stunning display, blazing-fast performance, and powerful Galaxy AI features.

Samsung Galaxy S25 Ultra tech specs 

The Samsung Galaxy S25 Ultra is a stunning phone. It introduces a durable titanium build and offers incredible power, a large high-end screen, excellent camera performance, and convenient AI features.  

  • Samsung Galaxy S25 

    Release date: 2025, February 03 

    Back Market price: £599* 

    New: £796.82 

    Savings: £197.82 

    *Back Market prices taken at the date of publication – these are subject to change.

    Display 

    • Size: 6.2-inch 

    • Resolution: 2340 x 1080 pixels, 19.5:9 ratio, 416 ppi 

    • Technology: Dynamic AMOLED 

    • Refresh rate: 120Hz 

    • Peak brightness: 2600 nits 

    Display features 

    • HDR support 

    • Scratch-resistant glass (Corning Gorilla Glass Victus 2) 

    • Ambient light sensor 

    • Proximity sensor 

    • Always-On display 

    Hardware 

    • Chip: Qualcomm Snapdragon 8 Elite SM8750-AB (3 nm) 

    • GPU: Adreno 830 

    • Memory (RAM): 12GB 

    • Storage: 128GB, 256GB, 512GB 

    • Operating system: Android (15), One UI 7 - up to 7 major Android upgrades

    Battery 

    • Capacity: 4000 mAh 

    • Type: Li-Ion 

    • Charging: Fast charging, Qi wireless charging, Reverse wireless charging 

    Charging speed 

    • Wired: 25W (50% in 30 minutes) 

    • Wireless: 15W 

    • Reverse wireless: 4.5W 

    Rear camera 

    • Main camera: 50 MP (OIS, PDAF) 

    • Second camera: 10 MP (telephoto, OIS) 

    • Third camera: 12 MP (ultra-wide) 

    • Features: Best Face, Auto-HDR, Panorama, LED flash 

    Video recording 

    • 7680 x 4320 (8K UHD) (30 fps) 

    • 3840 x 2160 (4K UHD) (60 fps) 

    • 1920 x 1080 (Full HD) (240 fps) 

    Video recording features 

    • HDR 

    • Continuous autofocus 

    • Picture-taking during video recording 

    Front camera 

    • Camera: 12 MP 

    • Video capture: 3840 x 2160 (4K UHD) (60 fps) 

    • Features: HDR, HDR10+ 

    Design and build 

    • Dimensions: 5.78 x 2.78 x 0.28 in (146.9 x 70.5 x 7.2 mm) 

    • Weight: 5.71 oz (162.0 g) 

    • Materials: Glass rear (Corning Gorilla Glass Victus 2), Aluminium frame 

    • Resistance: IP68 dust-tight and water resistant 

    • Biometrics: Ultrasonic in-screen fingerprint 

    • Keys: Volume control, Lock/Unlock key

    Multimedia 

    • 3.5mm headphone jack: No 

    • Speakers: Earpiece, Multiple speakers 

    • Screen mirroring: Wireless screen share 

    • Additional microphones: Noise cancellation

    Network 

    • Technology: GSM, CDMA, HSPA, EVDO, LTE, 5G 

    • Data speed: LTE-A Pro Cat 20 (2000/150 Mbit/s) 

    • SIM type: Nano SIM, eSIM

    Connectivity 

    Bluetooth: 5.4 

    Wi-Fi: 802.11 a, b, g, n, ac, ax (Wi-Fi 6), Wi-Fi 6E, Wi-Fi 7, Wi-Fi Direct, Hotspot 

    USB: Type-C (reversible), USB 3.2 

    Sensors: Accelerometer, Gyroscope, Compass, Barometer 

    Other

    NFC, Ultra-wideband (UWB), Samsung DeX, Samsung Wireless DeX (desktop experience support), Circle to Search 

  • Samsung Galaxy S25+ 

    Release date: 2025, February 03 

    Back Market price: £660.96* 

    New: £999 

    Savings: £338.04

     *Back Market prices taken at the date of publication – these are subject to change. 

    Display 

    • Size: 6.7-inch 

    • Resolution: 3120 x 1440 pixels, 19.5:9 ratio, 513 ppi 

    • Technology: Dynamic AMOLED 

    • Refresh rate: 120Hz 

    • Peak brightness: 2600 nits 

    Display features 

    • HDR support 

    • Scratch-resistant glass (Corning Gorilla Glass Victus 2) 

    • Ambient light sensor 

    • Proximity sensor 

    • Always-On display

    Hardware 

    • Chip: Qualcomm Snapdragon 8 Elite SM8750-AB (3 nm) 

    • GPU: Adreno 830 

    • Memory (RAM): 12GB 

    • Storage: 256GB, 512GB 

    • Operating system: Android (15), One UI 7 - up to 7 major Android upgrades 

    Battery 

    • Capacity: 4900 mAh 

    • Type: Li-Ion 

    • Charging: Fast charging, Qi wireless charging, Reverse wireless charging

    Charging speed 

    • Wired: 45W (65% in 30 minutes) 

    • Wireless: 15W 

    • Reverse wireless: 4.5W

    Rear camera 

    • Main camera: 50 MP (OIS, PDAF) 

    • Second camera: 10 MP (telephoto, OIS) 

    • Third camera: 12 MP (ultra-wide) 

    • Features: Best Face, Auto-HDR, Panorama, LED flash

    Video recording 

    • 7680 x 4320 (8K UHD) (30 fps) 

    • 3840 x 2160 (4K UHD) (60 fps) 

    • 1920 x 1080 (Full HD) (240 fps) 

    Video recording features 

    • HDR 

    • Continuous autofocus 

    • Picture-taking during video recording

    Front camera 

    • Camera: 12 MP 

    • Video capture: 3840 x 2160 (4K UHD) (60 fps) 

    • Features: HDR, HDR10+

    Design and build 

    • Dimensions: 6.24 x 2.98 x 0.29 in (158.4 x 75.7 x 7.3 mm) 

    • Weight: 6.70 oz (190.0 g) 

    • Materials: Glass rear (Corning Gorilla Glass Victus 2), Aluminium frame 

    • Resistance: IP68 dust-tight and water resistant 

    • Biometrics: Ultrasonic in-screen fingerprint 

    • Keys: Volume control, Lock/Unlock key

    Multimedia 

    • 3.5mm headphone jack: No 

    • Speakers: Earpiece, Multiple speakers 

    • Screen mirroring: Wireless screen share 

    • Additional microphones: Noise cancellation

    Network 

    • Technology: GSM, CDMA, HSPA, EVDO, LTE, 5G 

    • Data speed: LTE-A, HSDPA+ (4G) 42.2 Mbit/s 

    • SIM type: Nano SIM, eSIM 

    Connectivity 

    • Bluetooth: 5.4 

    • Wi-Fi: 802.11 a, b, g, n, ac, ax (Wi-Fi 6), Wi-Fi 6E, Wi-Fi 7, Wi-Fi Direct, Hotspot 

    • USB: Type-C (reversible), USB 3.2 

    • Sensors: Accelerometer, Gyroscope, Compass, Barometer

    Other

    NFC, Ultra-wideband (UWB), Samsung DeX, Samsung Wireless DeX (desktop experience support), Circle to Search 

  • Samsung Galaxy S25 Ultra 

    Release date: 2025, February 03 

    Back Market price: £840* 

    New: £1,200 

    Savings: £360 

     *Back Market prices taken at the date of publication – these are subject to change. 

    Display 

    • Size: 6.9-inch 

    • Resolution: 3120 x 1440 pixels, 19.5:9 ratio, 513 ppi 

    • Technology: Dynamic AMOLED 

    • Refresh rate: 120Hz 

    • Peak brightness: 2600 nits 

    Display features 

    • HDR support 

    • Scratch-resistant glass (Corning Gorilla Glass Armor 2) 

    • Ambient light sensor 

    • Proximity sensor 

    • Always-On display 

    • DX anti-reflective coating

    Hardware 

    • Chip: Qualcomm Snapdragon 8 Elite SM8750-AB (3 nm) 

    • GPU: Adreno 830 

    • Memory (RAM): 12GB 

    • Storage: 256GB, 512GB, 1TB 

    • Operating system: Android (15), One UI 7 - up to 7 major Android upgrades 

    Battery 

    • Capacity: 5000 mAh 

    • Type: Li-Ion 

    • Charging: Fast charging, Qi wireless charging, Reverse wireless charging

    Charging speed 

    • Wired: 45W (65% in 30 minutes) 

    • Wireless: 15W 

    • Reverse wireless: 4.5W 

    Rear camera 

    • Main camera: 200 MP (OIS, Laser and PDAF) 

    • Second camera: 50 MP (telephoto, Periscope, OIS, PDAF) 

    • Third camera: 10 MP (telephoto, OIS, PDAF) 

    • Fourth camera: 50 MP (ultra-wide, PDAF) 

    • Features: Laser autofocus, Best Face, Auto-HDR, Panorama, LED flash 

    Video recording 

    • 7680 x 4320 (8K UHD) (30 fps) 

    • 3840 x 2160 (4K UHD) (60 fps) 

    • 1920 x 1080 (Full HD) (240 fps) 

    Video recording features 

    • HDR 

    • Continuous autofocus 

    • Picture-taking during video recording

    Front camera 

    • Camera: 12 MP 

    • Video capture: 3840 x 2160 (4K UHD) (60 fps) 

    • Features: HDR, HDR10+

    Design and build 

    • Dimensions: 6.41 x 3.06 x 0.32 in (162.8 x 77.6 x 8.2 mm) 

    • Weight: 7.69 oz (218.0 g) 

    • Materials: Glass rear (Corning Gorilla Glass Armor 2), Titanium frame 

    • Resistance: IP68 dust-tight and water resistant 

    • Biometrics: Ultrasonic in-screen fingerprint 

    • Features: Stylus 

    • Keys: Volume control, Lock/Unlock key

    Multimedia 

    • 3.5mm headphone jack: No 

    • Speakers: Earpiece, Multiple speakers 

    • Features: aptX, aptX-HD 

    • Screen mirroring: Wireless screen share 

    • Additional microphones: Noise cancellation 

    Network 

    • Technology: GSM, CDMA, HSPA, EVDO, LTE, 5G 

    • Data speed: LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s 

    • SIM type: Nano SIM, eSIM 

    Connectivity 

    • Bluetooth: 5.4 

    • Wi-Fi: 802.11 a, b, g, n, ac, ax (Wi-Fi 6), Wi-Fi 6E, Wi-Fi 7, Wi-Fi Direct, Hotspot 

    • USB: Type-C (reversible), USB 3.2 

    • Sensors: Accelerometer, Gyroscope, Compass, Barometer 

    Other

    NFC, Ultra-wideband (UWB), Samsung DeX, Samsung Wireless DeX (desktop experience support), Circle to Search 

Why buying refurbished is better than buying new 

Choosing a refurbished device over a brand-new one is a smart choice for your wallet and a great choice for the planet. The manufacturing of new devices, like the latest Samsung Galaxy S25 series, releases a significant amount of CO2 emissions. In fact, 80% of a smartphone's total CO2 emissions come from the manufacturing process. By buying a refurbished smartphone, you're actively combating climate change by reducing the demand for new manufacturing, thereby preventing a significant amount of CO2 from being released into the atmosphere. The simple switch from new to refurbished contributes to a sustainable tech industry, lowering your carbon footprint while still getting first-rate tech at a pocket-friendly cost. Back Market's Verified Refurbished devices are refurbished by certified industry professionals to premium working condition and are offered at up to 50% less than the cost of a new device. For added peace of mind, you get a 30-day return period and a 1-year warranty with every purchase.

Written by Haziq, Tech Expert for Back Market UK, Ireland & Australia

When not fighting the good fight for environmental sustainability, Haziq loves making reviews of everything and anything tech-related.

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