Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB) vs Samsung Galaxy A55 (SM-A556E/DS 128GB)
Side by side comparison between Samsung Galaxy S25 Ultra vs Samsung Galaxy A55 phones, differences, pros, cons and full specifications. What's the better?
,
6.9"
AMOLED
AMOLED
1440x3120
200
MP
MP
12mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.6"
AMOLED
AMOLED
1080x2340
50
MP
MP
32mp
8GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
23 Advantages 
3 Advantages | 35 Common items in both devices |
| 8.2 millimeters (0.32 inches) |
| LTPO AMOLED / Super AMOLED |
| HDR10+ |
| 120Hz |
| 16 million |
| LED flash |
| PDAF: phase detection autofocus on both cameras / PDAF: phase detection autofocus |
| +28 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Change model | ||
| Model | Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) |
| Other model names | Galaxy S25 Ultra SM-S938B/Dual-SIM | Galaxy A55 5G SM-A556E/Dual-SIM |
| Country or region available |  (Global, International) |   (Latin America), Brazil |
| Brand | Samsung | Samsung |
| Release date | 2/3/2025, Announced: 2/22/2025 | 3/15/2024, Announced: 3/11/2024 |
| Depth | 8.2 millimeters (0.32 inches) | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 77.6 x 162.8 millimeters (3.06 x 6.41 in) | 77.4 x 161.1 millimeters (3.05 x 6.34 in) |
| Weight | 218 grams (7.63 ounces) | 213 grams (7.46 ounces) |
| Build, materials | Titanium frame, glass front and back Back: Gorilla Armor 2 | Aluminum frame, glass front/back Back: Corning Gorilla Glass |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | IP67 certified: dust proof and waterproof over 1 meter and 30min |
📲 Display | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Display type | LTPO AMOLED | Super AMOLED |
| Screen size | 6.9" inches | 6.6" inches |
| Screen-to-body ratio | ~92.5% (screen-to-body ratio) | ~85.8% (screen-to-body ratio) |
| Display resolution | 1440x3120 pixels (19.5:9) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 498 PPI | 390 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Armor 2 | Gorilla Glass Victus |
| Refresh rate | 120Hz | 120Hz |
| Display features | 2600nits[peak] HDR10+ Always-On Display | HDR10+ Always-On Display |
🤖 Operating System | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| System version | Android 15 | Android 14 |
| Firmware update | feature not registered | Android 15 |
| User Interface | One UI 7.0 | One UI 6.1 / 7.0 |
⚙️ Processor | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) | 64bit: Samsung Exynos 1480 (4nm) |
| CPU | Octa-core, 2 processors: 2x 4.47GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) | Octa-core, 2 processors: 4x 2.75GHz ARM Cortex-A78 (Quad-core) 4x 2GHz ARM Cortex-A55 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 830 (1100MHz) | Samsung Xclipse 530 |
| Performance (benchmark) | AnTuTu: 2207809 (v10) Geekbench: 9846 (v6) | AnTuTu: 635598 (v9), 726158 (v10) Geekbench: 3259 (v5), 3350 (v6) |
💽 Memory and storage | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| RAM memory | 12GB LPDDR5X | 8GB LPDDR5 |
| Internal storage | 256GB (223GB available) UFS 4.0 | 128GB (109GB available) UFS 3.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 5000/1024 Mbps | 3000/1024 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat24 () TD-LTE () VoLTE | LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | SA/NSA/Sub6 () | SA/NSA/Sub6 (1, 3, 5, 7, 8, 26, 28, 40, 41, 66, 77, 78) |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
| Secondary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS | Not supported |
| Secondary 4G network | LTE Cat24 () TD-LTE () VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | Not supported |
📷 Camera | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Back camera (main camera) | (quad camera) 200 megapixels 10MP telephoto f/2.467mm1/3.52"1.12µmPDAFOIS3x-optical-zoom 50MP periscope telephoto f/3.4111mm1/2.52"0.7µmPDAFOIS5x-optical-zoom 50MP ultrawide f/1.9120°0.7µmPDAFSuper-Steady | (triple camera) 50 megapixels 12MP ultrawide f/2.2123°1/3.06"1.12µm 5MP macro f/2.4 |
| Main camera resolution | 20000x10000 pixels | 8160x6120 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
| Focal length | 24mm (lens) | feature not registered |
| Sensor size | 1/1.3" inches | 1/1.56" inches |
| Pixel size | 0.6µm pixel | 1µm pixel |
| Autofocus | PDAF: phase detection autofocus on both cameras | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS: Optical stabilization |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo/video on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | 4K@30fps 1080p@30/60fps 720p@240fps (slow motion) |
📸 Front camera | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Front camera (secondary) | 12 megapixels | 32 megapixels |
| Front camera resolution | 4000x3000 pixels | 6528x4896 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
| Focal length | 26mm (lens) | 26mm (lens) |
| Sensor size | 1/3.2" inches | 1/2.74" inches |
| Pixel size | 1.12µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Tuned by AKG | Stereo sound |
| Active noise cancellation | 3 microphones | 3 microphones |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | Type-C reversible connector |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.4 + A2DP/LE | 5.3 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 5000 mAh | 5000 mAh |
| Charger, watts | 45W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 | 25W Wired fast charging |
| Inductive / wireless charging | 15W Qi wireless charging 4.5W Reverse wireless charging | Not supported |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Samsung DeX • Samsung Wireless DeX • Stylus (S Pen) • Circle to Search | • Colors: Navy, Iceblue, Lilac, Lemon |
☢️ Radiation rate | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Galaxy A55 (SM-A556E/DS 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |