BlackBerry Curve 8520 vs Samsung Galaxy S25 Edge (SM-S937B/DS 256GB)
Side by side comparison between BlackBerry Curve 8520 vs Samsung Galaxy S25 Edge phones, differences, pros, cons and full specifications. What's the better?
,
2.46"
TFT
TFT
320x240
2
MP
MP
128MB
RAM
RAM
Single-core
1150
mAh
mAh
(Removable)
vs
6.7"
AMOLED
AMOLED
1440x3120
200
MP
MP
12mp
12GB
RAM
RAM
Octa-core
3900
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S25 Edge (SM-S937B/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!
4 Advantages 
31 Advantages | 3 Common items in both devices |
| Only digital zoom |
| Hands-free calling |
| Vibrating alert |
| + 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 | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Change model | ||
| Model | Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) |
| Other model names | RIM BlackBerry Curve 8520, RIM Gemini | Galaxy S25 Edge SM-S937B/Dual-SIM |
| Country or region available | feature not registered |  (Global, International) |
| Brand | BlackBerry | Samsung |
| Release date | 8/3/2009 | 5/29/2025, Announced: 5/13/2025 |
| Depth | 13.9 millimeters (0.55 inches) | 5.8 millimeters (0.23 inches) |
| Size (width x height) | 60 x 109 millimeters (2.36 x 4.29 in) | 75.6 x 158.2 millimeters (2.98 x 6.23 in) |
| Weight | 106 grams (3.71 ounces) | 163 grams (5.71 ounces) |
| Build, materials | feature not registered | Aluminum frame, glass front/back Back: Gorilla Glass Victus 2 |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Display type | TFT LCD | LTPO AMOLED |
| Screen size | 2.46" inches | 6.7" inches |
| Screen-to-body ratio | ~28.7% (screen-to-body ratio) | ~92.1% (screen-to-body ratio) |
| Display resolution | 320x240 pixels | 1440x3120 pixels (19.5:9) |
| Touchscreen | Not supported | Capacitive Multitouch |
| Pixel density (dot pitch) | 163 PPI | 513 PPI |
| Colors | 65 thousand | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass Ceramic 2 |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | HDR10+ |
🤖 Operating System | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| System version | BlackBerry OS 4.6 | Android 15 |
| Firmware update | BlackBerry OS 5.0 | feature not registered |
| User Interface | feature not registered | One UI 7.0 |
⚙️ Processor | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Chipset | 32bit: Freescale MXC275-30 | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) |
| CPU | Single-core, 1 processor: 1x 512MHz ARM1136JF-S (Single-core) | Octa-core, 2 processors: 2x 4.47GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) |
| GPU graphical controller | feature not registered | Qualcomm Adreno 830 (1100MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 2147092 (v10) Geekbench: 9391 (v6) |
💽 Memory and storage | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| RAM memory | 128MB SDRAM | 12GB LPDDR5X |
| Internal storage | 256MB | 256GB (220GB available) UFS 4.0 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 0.236 Mbps | 5000/1024 Mbps |
| Network technology | 2G | 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat24 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE |
| Primary 5G network | Not supported | SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 77, 78) |
| Primary data network | CSD, GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat24 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
📷 Camera | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Back camera (main camera) | 2 megapixels | (dual camera) 200 megapixels 12MP ultrawide f/2.213mm1/2.55"1.4µmPDAF |
| Main camera resolution | 1600x1200 pixels | 20000x10000 pixels |
| Video recording (primary) | QVGA (320x240) | 8K UHD (7680x4320) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | f/1.7 (aperture) |
| Focal length | feature not registered | 24mm (lens) |
| Sensor size | feature not registered | 1/1.3" inches |
| Pixel size | feature not registered | 0.6µm pixel |
| Autofocus | Not supported | PDAF: phase detection autofocus on both cameras |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | OIS: Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Face detection, Smile detection |
| BSI sensor | feature not registered | Supported |
| HDR | feature not registered | HDR photo/video on both cameras |
| Camera extras | feature not registered | 8K@30fps 4K@30/60/120fps 1080p@30/60/120/240fps |
📸 Front camera | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Front camera (secondary) | Not supported | 12 megapixels |
| Front camera resolution | Not supported | 4000x3000 pixels |
| Video recording (secondary) | Not supported | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | feature not registered | 1/3.2" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Loudspeaker | Supported | Stereo sound |
| Active noise cancellation | feature not registered | 3 microphones |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| USB | MicroUSB 2.0 | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 2.0 + A2DP | 5.4 + A2DP/LE |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | 802.11 a/b/g/n/ac/ax/be [wifi7/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | feature not registered | Supported |
| GPS | Not supported | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Sensors | Not supported | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 1150 mAh | 3900 mAh |
| Charger, watts | Wired charging | 25W Wired fast charging |
| Inductive / wireless charging | feature not registered | 15W Qi2 wireless charging |
| Talk time autonomy | 4.5 hours | feature not registered |
| Standby | 408 hours (17 days) | feature not registered |
➕ Other features | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | WAP, HTML | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Fixed QWERTY keyboard | Not supported |
| Miscellaneous | • Colors: Black • 1GB microSD included • Touch-sensitive optical trackpad • UMA • GMA • Java framework | • Colors: Titanium Jetblack, Titanium Silver, Titanium Icyblue • Samsung DeX |
☢️ Radiation rate | ||
| BlackBerry Curve 8520 | Galaxy S25 Edge (SM-S937B/DS 256GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.17W/kg (head), 1.23W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 1.235W/kg (head), 1.25W/kg (body) |