Apple iPhone 6S Plus (128GB) vs Samsung Galaxy A21 (SM-A215U1)
Side by side comparison between Apple iPhone 6S Plus vs Samsung Galaxy A21 phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
12
MP
MP
5mp
2GB
RAM
RAM
Dual-core
2750
mAh
mAh
(Non removable)
vs
6.5"
PLS
PLS
720x1600
16
MP
MP
13mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Apple iPhone 6S Plus (128GB)
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!
16 Advantages 
14 Advantages | 25 Common items in both devices |
| 60Hz |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| HDR photo/video on both cameras / HDR photo on both cameras |
| 4G LTE-A / 4G LTE |
| Capacitive |
| +18 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 | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Model | iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) |
| Other model names | iPhone 6s Plus A1634, iPhone 6s Plus A1687 CDMA, iPhone 6s+ | Galaxy A21 SM-A215UZKAXAA (USA Unlocked) |
| Country or region available |  (Global, International) |  USA |
| Brand | Apple | Samsung |
| Release date | 9/25/2015, Announced: 9/9/2015 | 6/26/2020 |
| Depth | 7.3 millimeters (0.29 inches) | 8.1 millimeters (0.32 inches) |
| Size (width x height) | 77.9 x 158.2 millimeters (3.07 x 6.23 in) | 76.7 x 167.8 millimeters (3.02 x 6.61 in) |
| Weight | 192 grams (6.72 ounces) | 193 grams (6.76 ounces) |
| Build, materials | Aluminum body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Display type | TFT LED-Backlit IPS LCD | TFT PLS |
| Screen size | 5.5" inches | 6.5" inches |
| Screen-to-body ratio | ~67.7% (screen-to-body ratio) | ~79.3% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels (16:9) | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 270 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Sapphire Glass | Not supported |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| System version | iOS 9.0 | Android 10 |
| Firmware update | iOS 15 | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Chipset | 64bit: Apple A9 (APL1022) (16nm) | 64bit: MediaTek Helio P35 (MT6765) (12nm) |
| CPU | Dual-core, 1 processor: 2x 1.84GHz Twister (Dual-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | PowerVR GT7600 (6-core, 650MHz) | PowerVR GE8320 MP2 (680MHz) |
| Performance (benchmark) | Basemark OS II: 2261 (2.0) | feature not registered |
💽 Memory and storage | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| RAM memory | 2GB LPDDR4 | 3GB LPDDR3 |
| Internal storage | 128GB (114GB available) NVMe (SSD) | 32GB (20GB available) eMMC 5.1 |
| External storage | Not supported | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| 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, CDMA 800/1700/1900/2100 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat6 A1634 model: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30) TD-LTE (Bands 38, 39, 40, 41) A1687 model: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29) TD-LTE (Bands 38, 39, 40, 41) | LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71) TD-LTE (38, 39, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Back camera (main camera) | 12 megapixels | (quad camera) 16 megapixels 8MP ultrawide f/2.21/4.0"1.12µm 2MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 4608x2592 pixels | 4608x3456 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
| Focal length | 29mm (lens) | feature not registered |
| Sensor size | 1/3" inches | 1/3.06" inches |
| Pixel size | 1.22µm pixel | 1µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Front camera (secondary) | 5 megapixels | 13 megapixels |
| Front camera resolution | 2592x1944 pixels | 4128x3096 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
| Focal length | 31mm (lens) | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MPEG4, H.264, H.265, MOV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, AAC, eAAC, M4A | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| USB | USB 2.0 proprietary connector | USB 2.0 Type-C reversible connector |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Proprietary TV-out | Not supported |
| Bluetooth | 4.2 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, QZSS | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor (front-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 2750 mAh | 4000 mAh |
| Charger, watts | Wired charging | 15W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 24 hours (1 day) | feature not registered |
| Standby | 384 hours (16 days) | feature not registered |
➕ Other features | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| 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 | • Colors: Silver, Gold, Space Gray, Rose Gold • Oleophobic coating • Touch ID v2 • Simultaneous HD video and image recording • 3D Touch display • FaceTime • Siri natural language • AirDrop file sharing • iCloud cloud service • NFC Apple Pay only (Visa, MasterCard, AMEX) • WiFi hotspot | • Colors: Black • One UI 2.0 |
☢️ Radiation rate | ||
| iPhone 6S Plus (128GB) | Galaxy A21 (SM-A215U1) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.12W/kg (head), 1.14W/kg (body) | 0.6W/kg (head), 1.27W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.93W/kg (head), 0.98W/kg (body) | feature not registered |